The information in this preliminary pricing supplement is not complete and may 
  be changed. A registration statement relating to these securities has been    
  filed with the Securities and Exchange Commission. This preliminary pricing   
 supplement and the accompanying product supplement, prospectus supplement and  
 prospectus are not an offer to sell these securities, nor are they soliciting  
 an offer to buy these securities, in any state where the offer or sale is not  
                                   permitted.                                   
                 SUBJECT TO COMPLETION, DATED NOVEMBER 8, 2023                  



Citigroup Global Markets Holdings Inc.                                          November , 2023
                                                             Medium-Term Senior Notes, Series N
                                                         Pricing Supplement No. 2023-USNCH19561
                                                               Filed Pursuant to Rule 424(b)(2)
                                       Registration Statement Nos. 333-270327 and 333-270327-01


Bearish Buffer Securities Linked to the S&P500
(R)
Index Due December 5, 2024

 ▪ The securities offered by this pricing supplement are unsecureddebt       
          securities issued by Citigroup Global Markets Holdings Inc. and guaranteed
          by Citigroup Inc. Unlike conventional debt securities,the securities      
          do not pay interest and do not repay a fixed amount of principal          
          at maturity. Instead, the securities offer a paymentat maturity that may  
          be greater than, equal to or less than the stated principal amount,       
          depending on the inverse performance of theunderlying specified below     
          from the initial underlying value to the final underlying value.          



 ▪ The securities offer modified inverse                                  
          exposure to the performanceof                                          
          the underlying,                                                        
          which means that you will receive a positive return at maturity        
          only if theunderlying depreciates and may incur a loss at maturity     
          if the underlying appreciates. If the underlying depreciates, the      
          securitiesoffer modified exposure to the absolute value of that        
          depreciation at the participation rate specified below, subject to     
          the maximumreturn at maturity specified below. If the underlying       
          appreciates, but not by more than the buffer percentage specified      
          below, you willbe repaid the stated principal amount of your securities
          . In exchange for these features,                                      
          investors in the securities must                                       
          bewilling to forgo any depreciation                                    
          of the underlying in excess                                            
          of the maximum return at maturity                                      
          specified below and must be                                            
          willing toforgo any dividends                                          
          with respect to the underlying.                                        
          If the underlying appreciates by more                                  
          than the buffer percentage from the                                    
          initialunderlying value to the final                                   
          underlying value, you will lose 1% of the                              
          stated principal amount of your securities                             
          for every 1% by whichthat appreciation                                 
          exceeds the buffer percentage, subject                                 
          to the minimum payment at maturity.                                    



 ▪ In order to obtain the modified inverse exposure to the underlyingthat the    
          securities provide, investors must be willing to accept (i) an investment that
          may have limited or no liquidity and (ii) therisk of not receiving any amount 
          due under the securities if we and Citigroup Inc. default on our obligations. 
          All payments on thesecurities                                                 
          are subject to the credit risk                                                
          of Citigroup Global Markets                                                   
          Holdings Inc. and Citigroup Inc.                                              



KEY TERMS                                                                                           
Issuer:                           Citigroup Global Markets Holdings Inc., a                         
                                  wholly owned subsidiary of Citigroup Inc.                         
Guarantee:                        All payments due on the securities are fully and                  
                                  unconditionally guaranteed by Citigroup Inc.                      
Underlying:                       The S&P 500                                                       
                                  (R)                                                               
                                  Index                                                             
Stated principal amount:          $1,000 per security                                               
Pricing date:                     November 29, 2023                                                 
Issue date:                       December 4, 2023                                                  
Valuation date:                   December 2, 2024, subject to postponement if such date is not a   
                                  scheduled trading day or certain market disruption events occur   
Maturity date:                    December 5, 2024                                                  
Payment at maturity:              You will receive at maturity for each security you then hold:     
                                  (s)                                                               
                                  Ifthe final underlying value is                                   
                                  less than                                                         
                                  the initial underlying value:                                     
                                  $1,000 + the return amount , subject                              
                                  to the maximumreturn at maturity                                  
                                  (s)                                                               
                                  Ifthe final underlying value is                                   
                                  greater than or equal to                                          
                                  the initial underlying value but                                  
                                  less than or equal to                                             
                                  the finalbuffer value:                                            
                                  $1,000                                                            
                                  (s)                                                               
                                  If the final underlying value is                                  
                                  greater than                                                      
                                  the final buffer value:                                           
                                  $1,000 - [$1,000 x (the underlying return - thebuffer             
                                  percentage)], subject to the minimum payment at maturity          
                                  If the final underlying value is greater than the                 
                                  final buffervalue, which means that the underlying                
                                  has appreciated from the initial underlying                       
                                  value by more than the buffer percentage, you                     
                                  willlose 1% of the stated principal amount of                     
                                  your securities at maturity for every 1% by which                 
                                  that appreciation exceeds the buffer                              
                                  percentage,subject to the minimum payment at maturity.            
Initial underlying value:         , the closing value of the underlying on the pricing date         
Final underlying value:           The closing value of the underlying on the valuation date         
Return amount:                    $1,000 x the absolute value of the                                
                                  underlying return x the participation rate                        
Participation rate:               300.00%                                                           
Underlying return:                (i) The final underlying value                                    
                                  minus                                                             
                                  the initial underlying value,                                     
                                  divided by                                                        
                                  (ii) the initial underlying value                                 
Minimum payment at maturity:      $100.00 per security (10.00% of the stated principal amount).     
Maximum return at maturity:       The maximum return at maturity will                               
                                  be determined on the pricing date and                             
                                  will be at least $230.00 per security                             
                                  (at least 23.00% of the stated                                    
                                  principal amount). The payment at                                 
                                  maturity per security will not exceed                             
                                  the stated principal amount plus the maximum return at maturity.  
Final buffer value:               , 110.00% of the initial underlying value                         
Buffer percentage:                10.00%                                                            
Listing:                          The securities will not be listed on any securities exchange      
CUSIP / ISIN:                     17291TGZ5 / US17291TGZ57                                          
Underwriter:                      Citigroup Global Markets Inc. ("CGMI"), an                        
                                  affiliate of the issuer, acting as principal                      
Underwriting fee and issue price:      Issue price         Underwriting fee     Proceeds to issuer  
                                           (1)                    (2)                   (3)         
Per security:                           $1,000.00               $20.00                $980.00       
Total:                                      $                      $                     $          

(1) Citigroup Global Markets HoldingsInc. currently expects that the estimated 
value of the securities on the pricing date will be at least $919.00 per 
security, which willbe less than the issue price. The estimated value of the 
securities is based on CGMI's proprietary pricing models and our internalfunding
 rate. It is not an indication of actual profit to CGMI or other of our 
affiliates, nor is it an indication of the price, if any,at which CGMI or any 
other person may be willing to buy the securities from you at any time after 
issuance. See "Valuation of theSecurities" in this pricing supplement.
(2) CGMI will receive an underwritingfee of up to $20.00 for each security 
sold in this offering. The total underwriting fee and proceeds to issuer in 
the table above giveeffect to the actual total underwriting fee. For more 
information on the distribution of the securities, see "Supplemental Planof 
Distribution" in this pricing supplement. In addition to the underwriting fee, 
CGMI and its affiliates may profit from expectedhedging activity related to 
this offering, even if the value of the securities declines. See "Use of 
Proceeds and Hedging"in the accompanying prospectus.
(3) The per security proceeds to issuerindicated above represent the minimum 
per security proceeds to issuer for any security, assuming the maximum per 
security underwritingfee. As noted above, the underwriting fee is variable.

Investing in the securities involves risks not associated with aninvestment in 
conventional debt securities. See "Summary Risk Factors" beginning on page 
PS-6.
    Neither the Securities and Exchange Commissionnor any state securities      
  commission has approved or disapproved of the securities or determined that   
  this pricing supplement and theaccompanying product supplement, underlying    
 supplement, prospectus supplement and prospectus are truthful or complete. Any 
              representationto the contrary is a criminal offense.              
 You should read this pricing supplement togetherwith the accompanying product  
 supplement, underlying supplement, prospectus supplement and prospectus, which 
                    can be accessed via thehyperlinks below:                    
               ProductSupplement No. EA-02-10 dated March 7, 2023               
                                                                                
                UnderlyingSupplement No. 11 dated March 7, 2023                 
         Prospectus Supplement and Prospectus each dated March 7, 2023          
 The securities are not bank deposits and arenot insured or guaranteed by the   
  Federal Deposit Insurance Corporation or any other governmental agency, nor   
               are they obligations of,or guaranteed by, a bank.                
                                                                                


Citigroup Global Markets Holdings Inc.
                                      

Additional Information

The terms of the securities are set forth in the accompanying productsupplement,
 prospectus supplement and prospectus, as supplemented by this pricing 
supplement. The accompanying product supplement, prospectussupplement and 
prospectus contain important disclosures that are not repeated in this pricing 
supplement. For example, the accompanyingproduct supplement contains important 
information about how the closing value of the underlying will be determined 
and about adjustmentsthat may be made to the terms of the securities upon the 
occurrence of market disruption events and other specified events with 
respectto the underlying (except as set forth in the next paragraph). The 
accompanying underlying supplement contains information about the 
underlyingthat is not repeated in this pricing supplement. It is important 
that you read the accompanying product supplement, underlying supplement,prospec
tus supplement and prospectus together with this pricing supplement in 
deciding whether to invest in the securities. Certain termsused but not 
defined in this pricing supplement are defined in the accompanying product 
supplement.


 PS-
   2


Citigroup Global Markets Holdings Inc.
                                      

Payout Diagram

The diagram below illustrates your payment at maturity for a range 
ofhypothetical underlying returns. The diagram assumes that the maximum return 
at maturity will be set at the lowest value indicated onthe cover page of this 
pricing supplement. The actual maximum return at maturity will be determined 
on the pricing date.

Investors in the securities will not receive any dividends with respectto the 
underlying. The diagram and examples below do not show any effect of lost 
dividend yield over the term of the securities.
See"Summary Risk Factors-You will not receive dividends or have any other 
rights with respect to the underlying" below.


       Payout Diagram        
                             
             n               
The Securities              n
               The Underlying



 PS-
   3


Citigroup Global Markets Holdings Inc.
                                      

Hypothetical Examples

The examples below illustrate how to determine the payment at maturityon the 
securities, assuming the various hypothetical final underlying values 
indicated below. The examples are solely for illustrativepurposes, do not show 
all possible outcomes and are not a prediction of what the actual payment at 
maturity on the securities will be.The actual payment at maturity will depend 
on the actual final underlying value.

The examples below are based on the following hypothetical values anddo not 
reflect the actual initial underlying value or final buffer value. For the 
actual initial underlying value and final buffer value,see the cover page of 
this pricing supplement. We have used these hypothetical values, rather than 
the actual values, to simplify thecalculations and aid understanding of how 
the securities work. However, you should understand that the actual payment at 
maturity on thesecurities will be calculated based on the actual initial 
underlying value and final buffer value, and not the hypothetical values 
indicatedbelow. For ease of analysis, figures below have been rounded. The 
examples below assume that the maximum return at maturity will be setat the 
lowest value indicated on the cover page of this pricing supplement. The 
actual maximum return at maturity will be determined onthe pricing date.


Hypothetical initial underlying value: 100.00                                                       
Hypothetical final buffer value:       110.00 (110.00% of the hypothetical initial underlying value)


Example 1-Upside Scenario A.
The final underlying valueis 95.00, resulting in a -5.00% underlying return. 
In this example, the final underlying value is
less than
the initial underlyingvalue.

Payment at maturity per security = $1,000 + the return amount, subjectto the 
maximum return at maturity
= $1,000 + ($1,000 x the absolute value of the underlying returnx the 
participation rate), subject to the maximum return at maturity
= $1,000 + ($1,000 x 5.00% x 300.00%), subject to the maximumreturn at maturity
= $1,000 + $150.00, subject to the maximum return at maturity
= $1,150.00

In this scenario, the underlying has depreciated from the initial 
underlyingvalue to the final underlying value, and your total return at 
maturity would equal the absolute value of the underlying return
multipliedby
the participation rate, subject to the maximum return at maturity.

Example 2-Upside Scenario B.
The final underlying valueis 40.00, resulting in a -60.00% underlying return. 
In this example, the final underlying value is
less than
the initial underlyingvalue.

Payment at maturity per security = $1,000 + the return amount, subjectto the 
maximum return at maturity
= $1,000 + ($1,000 x the absolute value of the underlying returnx the 
participation rate), subject to the maximum return at maturity
= $1,000 + ($1,000 x 60.00% x 300.00%), subject to themaximum return at maturity
= $1,000 + $1,800.00, subject to the maximum return at maturity
= $1,230.00

In this scenario, the underlying has depreciated from the initial 
underlyingvalue to the final underlying value, but the underlying return

multiplied by
the participation rate would exceed the maximum returnat maturity. As a 
result, your total return at maturity in this scenario would be limited to the 
maximum return at maturity, and an investmentin the securities would 
underperform a hypothetical alternative investment providing 1-to-1 exposure 
to the depreciation of the underlyingwithout a maximum return.

Example 3-Par Scenario.
The final underlying value is 105.00,resulting in a 5.00% underlying return. 
In this example, the final underlying value is
greater than
the initial underlying valuebut
less than
the final buffer value.

Payment at maturity per security = $1,000

In this scenario, the underlying has appreciated from the initial 
underlyingvalue to the final underlying value, but not by more than the buffer 
percentage. As a result, you would be repaid the stated principalamount of 
your securities at maturity but would not receive any positive return on your 
investment.

Example 4-Downside Scenario A.
The final underlying valueis 170.00, resulting in a 70.00% underlying return. 
In this example, the final underlying value is
greater than
the final buffervalue.

Payment at maturity per security = $1,000 - [$1,000 x (the underlyingreturn - 
the buffer percentage)], subject to the minimum payment at maturity
= $1,000 - [$1,000 x (70.00% - 10.00%)], subject to the minimumpayment at 
maturity
= $1,000 - [$1,000 x 60.00%], subject to the minimum paymentat maturity
= $1,000 - $600.00, subject to the minimum payment at maturity
= $400.00

In this scenario, the underlying has appreciated from the initial 
underlyingvalue to the final underlying value by more than the buffer 
percentage. As a result, your total return at maturity in this scenario 
wouldbe negative and would reflect 1-to-1 inverse exposure to the positive 
performance of the underlying beyond the buffer percentage, subjectto the 
minimum payment at maturity.


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   4


Citigroup Global Markets Holdings Inc.
                                      

Example 5-Downside Scenario B.
The final underlying valueis 220.00, resulting in a 120.00% underlying return. 
In this example, the final underlying value is
greater than
the final buffervalue.

Payment at maturity per security = $1,000 - [$1,000 x (the underlyingreturn - 
the buffer percentage)], subject to the minimum payment at maturity
= $1,000 - [$1,000 x (120.00% - 10.00%)], subject to the minimumpayment at 
maturity
= $1,000 - [$1,000 x 110.00%], subject to the minimum paymentat maturity
= $1,000 - $1,100.00, subject to the minimum payment at maturity
= $100.00

In this scenario, the underlying has appreciated from the initial 
underlyingvalue to the final underlying value by more than the buffer 
percentage. As a result, your total return at maturity in this scenario 
wouldbe negative and would reflect 1-to-1 inverse exposure to the positive 
performance of the underlying beyond the buffer percentage, subjectto the 
minimum payment at maturity.


 PS-
   5


Citigroup Global Markets Holdings Inc.
                                      

Summary Risk Factors

An investment in the securities is significantly riskier than an investmentin 
conventional debt securities. The securities are subject to all of the risks 
associated with an investment in our conventional debtsecurities (guaranteed 
by Citigroup Inc.), including the risk that we and Citigroup Inc. may default 
on our obligations under the securities,and are also subject to risks 
associated with the underlying. Accordingly, the securities are suitable only 
for investors who are capableof understanding the complexities and risks of 
the securities. You should consult your own financial, tax and legal advisors 
as to therisks of an investment in the securities and the suitability of the 
securities in light of your particular circumstances.

The following is a summary of certain key risk factors for investorsin the 
securities. You should read this summary together with the more detailed 
description of risks relating to an investment in thesecurities contained in 
the section "Risk Factors Relating to the Securities" beginning on page EA-7 
in the accompanying productsupplement. You should also carefully read the risk 
factors included in the accompanying prospectus supplement and in the 
documents incorporatedby reference in the accompanying prospectus, including 
Citigroup Inc.'s most recent Annual Report on Form 10-K and any subsequentQuarte
rly Reports on Form 10-Q, which describe risks relating to the business of 
Citigroup Inc. more generally.


 (s) You may lose some of your investment.                               
     Unlike conventional debt securities, the securities do not repay    
     a fixed amount of principalat maturity. Instead, your payment       
     at maturity will depend on the inverse performance of the           
     underlying. If the underlying appreciatesby more than the buffer    
     percentage from the initial underlying value to the final underlying
     value, you will lose 1% of the stated principalamount of your       
     securities for every 1% by which that appreciation exceeds the      
     buffer percentage, subject to the minimum payment at maturity.      



 (s) Your potential return on                                                                                                
     the securities is limited.                                                                                              
     Your potential total return on the securities at maturity is limited tothe maximum return at maturity, even if the      
     underlying depreciates by significantly more than the maximum return at maturity. If the underlyingdepreciates by more  
     than the maximum return at maturity, the securities will underperform an alternative investment providing 1-to-1        
     inverseexposure to the performance of the underlying. When lost dividends are taken into account, the securities may    
     underperform an alternativeinvestment providing 1-to-1 inverse exposure to the performance of the underlying even if the
     underlying depreciates by less than themaximum return at maturity. In addition, the maximum return at maturity reduces  
     the effect of the participation rate for all final underlyingvalues less than the final underlying value at which, by   
     multiplying the corresponding underlying return by the participation rate, themaximum return at maturity is reached.    



 (s) The securities provide inverse (bearish)                                                                  
     exposure to the performance of the underlying.                                                            
     Because the securities provide inverse(bearish) exposure to the performance of the underlying, your return
     on the securities will not benefit from any appreciation of the underlyingover the term of the securities.



 (s) The securities do not pay interest.                                                                           
     Unlike conventional debt securities, the securities do not pay interest or any other amountsprior to maturity.
     You should not invest in the securities if you seek current income during the term of the securities.         



 (s) You will not receive dividends or have any                                                                   
     other rights with respect to the underlying.                                                                 
     You will not receive any dividendswith respect to the underlying. This lost dividend yield may be significant
     over the term of the securities. The payment scenarios describedin this pricing supplement do not show       
     any effect of such lost dividend yield over the term of the securities. In addition, you will nothave        
     voting rights or any other rights with respect to the underlying or the stocks included in the underlying.   



 (s) Your payment at maturity                                                 
     depends on the closing                                                   
     value of the underlying on a single day.                                 
     Because your payment at maturity dependson the closing value of the      
     underlying solely on the valuation date, you are subject to the risk that
     the closing value of the underlyingon that day may be higher, and        
     possibly significantly higher, than on one or more other dates during the
     term of the securities. If youhad invested in another instrument linked  
     to the underlying that you could sell for full value at a time selected  
     by you, or if the paymentat maturity were based on an average of closing 
     values of the underlying, you might have achieved better returns.        



 (s) The securities are subject to the credit risk of Citigroup                             
     Global Markets Holdings Inc. and Citigroup Inc.                                        
     If we default onour obligations under the securities and Citigroup Inc. defaults on its
     guarantee obligations, you may not receive anything owed to youunder the securities.   



 (s) The securities will not be listed                                
     on any securities exchange                                       
     and you may not be able to                                       
     sell them prior to maturity.                                     
     The securitieswill not be listed on any securities exchange.     
     Therefore, there may be little or no secondary market for the    
     securities. CGMI currentlyintends to make a secondary market in  
     relation to the securities and to provide an indicative bid price
     for the securities on a dailybasis. Any indicative bid price for 
     the securities provided by CGMI will be determined in CGMI's     
     sole discretion, taking into accountprevailing market conditions 
     and other relevant factors, and will not be a representation     
     by CGMI that the securities can be sold at thatprice, or at all. 
     CGMI may suspend or terminate making a market and providing      
     indicative bid prices without notice, at any time and forany     
     reason. If CGMI suspends or terminates making a market, there may
     be no secondary market at all for the securities because it is   
     likelythat CGMI will be the only broker-dealer that is willing   
     to buy your securities prior to maturity. Accordingly, an        
     investor must be preparedto hold the securities until maturity.  



 (s) The estimated value of the securities on the                                                                     
     pricing date, based on CGMI's proprietary                                                                        
     pricing models and our internal                                                                                  
     fundingrate, is less than the issue price.                                                                       
     The difference is attributable to certain costs associated with selling, structuring and hedgingthe securities   
     that are included in the issue price. These costs include (i) any selling concessions or other fees paid in      
     connectionwith the offering of the securities, (ii) hedging and other costs incurred by us and our affiliates    
     in connection with the offering ofthe securities and (iii) the expected profit (which may be more or less than   
     actual profit) to CGMI or other of our affiliates in connectionwith hedging our obligations under the securities.
     These costs adversely affect the economic terms of the securities because, if theywere lower, the economic       
     terms of the securities would be more favorable to you. The economic terms of the securities are also likelyto   
     be adversely affected by the use of our internal funding rate, rather than our secondary market rate, to price   



 PS-
   6


Citigroup Global Markets Holdings Inc.
                                      

the securities. See "The estimatedvalue of the securities would be lower if it 
were calculated based on our secondary market rate" below.


 (s) The estimated value of the                                             
     securities was determined for                                          
     us by our affiliate using                                              
     proprietary pricing models.                                            
     CGMI derivedthe estimated value disclosed on the cover page of this    
     pricing supplement from its proprietary pricing models. In doing so,   
     it may havemade discretionary judgments about the inputs to its models,
     such as the volatility of the closing value of the underlying,         
     the dividendyield on the underlying and interest rates. CGMI's views   
     on these inputs may differ from your or others' views, and as          
     anunderwriter in this offering, CGMI's interests may conflict with     
     yours. Both the models and the inputs to the models may prove          
     tobe wrong and therefore not an accurate reflection of the value       
     of the securities. Moreover, the estimated value of the securities     
     setforth on the cover page of this pricing supplement may differ       
     from the value that we or our affiliates may determine for the         
     securitiesfor other purposes, including for accounting purposes. You   
     should not invest in the securities because of the estimated value     
     of the securities.Instead, you should be willing to hold the           
     securities to maturity irrespective of the initial estimated value.    



 (s) The estimated value of the                                                                                                
     securities would be lower if                                                                                              
     it were calculated based on                                                                                               
     our secondary market rate.                                                                                                
     The estimatedvalue of the securities included in this pricing supplement is calculated based on our internal funding rate,
     which is the rate at whichwe are willing to borrow funds through the issuance of the securities. Our internal funding     
     rate is generally lower than our secondarymarket rate, which is the rate that CGMI will use in determining the value      
     of the securities for purposes of any purchases of the securitiesfrom you in the secondary market. If the estimated       
     value included in this pricing supplement were based on our secondary market rate,rather than our internal funding        
     rate, it would likely be lower. We determine our internal funding rate based on factors such as the costsassociated       
     with the securities, which are generally higher than the costs associated with conventional debt securities, and our      
     liquidityneeds and preferences. Our internal funding rate is not an interest rate that is payable on the securities.      


Because there is not an active market for traded instrumentsreferencing our 
outstanding debt obligations, CGMI determines our secondary market rate based 
on the market price of traded instrumentsreferencing the debt obligations of 
Citigroup Inc., our parent company and the guarantor of all payments due on 
the securities, but subjectto adjustments that CGMI makes in its sole 
discretion. As a result, our secondary market rate is not a market-determined 
measure of ourcreditworthiness, but rather reflects the market's perception of 
our parent company's creditworthiness as adjusted for discretionaryfactors 
such as CGMI's preferences with respect to purchasing the securities prior to 
maturity.


 (s) The estimated value of                                                                                             
     the securities is not an                                                                                           
     indication of the price,                                                                                           
     if any, at which CGMI                                                                                              
     or any other person may be willingto buy the                                                                       
     securities from you in the secondary market.                                                                       
     Any such secondary market price will fluctuate over the term of the securitiesbased on the market and other factors
     described in the next risk factor. Moreover, unlike the estimated value included in this pricingsupplement,        
     any value of the securities determined for purposes of a secondary market transaction will be based on our         
     secondary marketrate, which will likely result in a lower value for the securities than if our internal            
     funding rate were used. In addition, any secondarymarket price for the securities will be reduced by a bid-ask     
     spread, which may vary depending on the aggregate stated principal amountof the securities to be purchased         
     in the secondary market transaction, and the expected cost of unwinding related hedging transactions.As a          
     result, it is likely that any secondary market price for the securities will be less than the issue price.         



 (s) The value of the securities                                                                                    
     prior to maturity will                                                                                         
     fluctuate based on many                                                                                        
     unpredictable factors.                                                                                         
     The value of your securitiesprior to maturity will fluctuate based on the closing value of the underlying,     
     the volatility of the closing value of the underlying,the dividend yield on the underlying, interest rates     
     generally, the time remaining to maturity and our and Citigroup Inc.'s creditworthiness,as reflected in our    
     secondary market rate, among other factors described under "Risk Factors Relating to the Securities-RiskFactors
     Relating to All Securities-The value of your securities prior to maturity will fluctuate based on many         
     unpredictable factors"in the accompanying product supplement. Changes in the closing value of the underlying   
     may not result in a comparable change in the valueof your securities. You should understand that the           
     value of your securities at any time prior to maturity may be significantly less thanthe issue price.          



 (s) Immediately following issuance, any secondary market bid price provided by CGMI, and the value that will be indicated
     on any brokerageaccount statements prepared by CGMI or its affiliates, will reflect a temporary upward adjustment.   
     The amount of this temporary upwardadjustment will steadily decline to zero over the                                 
     temporary adjustment period. See "Valuation of the Securities" in this pricingsupplement.                            



 (s) Our offering of the securities is not a                                                   
     recommendation of bearish                                                                 
     exposure to the underlying.                                                               
     The fact that we are offeringthe securities does not mean that we believe that investing  
     in an instrument linked inversely to the underlying is likely to achieve favorablereturns.
     In fact, as we are part of a global financial institution, our affiliates may have        
     positions (including long and short positions)in the underlying or in instruments         
     related to the underlying, and may publish research or express opinions, that in each     
     case are inconsistentwith an investment linked inversely to the underlying. These         
     and other activities of our affiliates may affect the closing value of theunderlying      
     in a way that negatively affects the value of and your return on the securities.          



 (s) The closing value of the underlying                                                                    
     may be adversely affected                                                                              
     by our or our affiliates' hedging                                                                      
     and other trading activities.                                                                          
     We expect to hedge our obligations under the securities through CGMI or other of our affiliates, who   
     may take positions in the underlyingor in financial instruments related to the underlying and may      
     adjust such positions during the term of the securities. Our affiliatesalso take positions in the      
     underlying or in financial instruments related to the underlying on a regular basis (taking long or    
     short positionsor both), for their accounts, for other accounts under their management or to facilitate
     transactions on behalf of customers. These activitiescould affect the closing value of the underlying  
     in a way that negatively affects the value of and your return on the securities. Theycould also        
     result in substantial returns for us or our affiliates while the value of the securities declines.     



 (s) We and our affiliates may have                                                                       
     economic interests that are adverse                                                                  
     to yours as a result of our                                                                          
     affiliates' business activities.                                                                     
     Our affiliates engage in business activities with a wide range of companies. These activities include
     extending loans, making and facilitatinginvestments, underwriting securities offerings and providing 
     advisory services. These activities could involve or affect the underlyingin a way that negatively   
     affects the value of and your return on the securities. They could also result in substantial returns



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Citigroup Global Markets Holdings Inc.
                                      

for us or our affiliates while the valueof the securities declines. In 
addition, in the course of this business, we or our affiliates may acquire 
non-public information, whichwill not be disclosed to you.


 (s) The calculation agent, which                                                           
     is an affiliate of ours, will                                                          
     make important determinations                                                          
     with respect to the securities.                                                        
     Ifcertain events occur during the term of the securities, such as market disruption    
     events and other events with respect to the underlying,CGMI, as calculation agent, will
     be required to make discretionary judgments that could significantly affect your       
     return on the securities.In making these judgments, the calculation agent's interests  
     as an affiliate of ours could be adverse to your interests as a holderof the           
     securities. See "Risk Factors Relating to the Securities-Risk Factors Relating to All  
     Securities-The calculationagent, which is an affiliate of ours, will make important    
     determinations with respect to the securities" in the accompanying productsupplement.  



 (s) Changes that affect the underlying may                                                                    
     affect the value of your securities.                                                                      
     The sponsor of the underlying may at any time makemethodological changes or other changes in the manner in
     which it operates that could affect the value of the underlying. We are not affiliatedwith the underlying 
     sponsor and, accordingly, we have no control over any changes such sponsor may make. Such changes could   
     adverselyaffect the performance of the underlying and the value of and your return on the securities.     



 (s) The U.S. federal tax consequences                                                                   
     of an investment in th                                                                              
     e securities ar                                                                                     
     eunclear.                                                                                           
     There is no direct legal authority regarding the proper U.S. federal tax treatment of the           
     securities, and we do not planto request a ruling from the Internal Revenue Service (the "IRS").    
     Consequently, significant aspects of the tax treatmentof the securities are uncertain, and the IRS  
     or a court might not agree with the treatment of the securities as prepaid financial contractsthat  
     are "open transactions." If the IRS were successful in asserting an alternative treatment of the    
     securities, the taxconsequences of the ownership and disposition of the securities might be         
     materially and adversely affected. Moreover, future legislation,Treasury regulations or IRS guidance
     could adversely affect the U.S. federal tax treatment of the securities, possibly retroactively.    


If you are a non-U.S. investor, you shouldreview the discussion of withholding 
tax issues in "United States Federal Tax Considerations-Non-U.S. Holders" 
below.

You should read carefully the discussionunder "United States Federal Tax 
Considerations" and "Risk Factors Relating to the Securities" in the 
accompanyingproduct supplement and "United States Federal Tax Considerations" 
in this pricing supplement. You should also consult yourtax adviser regarding 
the U.S. federal tax consequences of an investment in the securities, as well 
as tax consequences arising underthe laws of any state, local or non-U.S. 
taxing jurisdiction.


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Citigroup Global Markets Holdings Inc.
                                      

Information About the S&P 500
(R)
Index

The S&P 500
(R)
Index consists of the common stocksof 500 issuers selected to provide a 
performance benchmark for the large capitalization segment of the U.S. equity 
markets. It is calculatedand maintained by S&P Dow Jones Indices LLC.

Please refer to the section "Equity Index Descriptions-TheS&P U.S. Indices" in 
the accompanying underlying supplement for additional information.

We have derived all information regarding the S&P 500
(R)
Index from publicly available information and have not independently verified 
any information regarding the S&P 500
(R)
Index. This pricing supplement relates only to the securities and not to the 
S&P 500
(R)
Index. We make no representationas to the performance of the S&P 500
(R)
Index over the term of the securities.

The securities represent obligations of Citigroup Global Markets HoldingsInc. 
(guaranteed by Citigroup Inc.) only. The sponsor of the S&P 500
(R)
Index is not involved in any way in this offeringand has no obligation 
relating to the securities or to holders of the securities.

Historical Information

The closing value of the S&P 500
(R)
Index on November6, 2023 was 4,365.98.

The graph below shows the closing value of the S&P 500
(R)
Index for each day such value was available from January 2, 2013 to November 
6, 2023. We obtained the closing values from Bloomberg L.P.,without 
independent verification. You should not take historical closing values as an 
indication of future performance.


              S&P 500              
                (R)                
 Index - Historical Closing Values 
January 2, 2013 to November 6, 2023
                                   



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Citigroup Global Markets Holdings Inc.
                                      

United States Federal Tax Considerations

You should read carefully the discussion under "United StatesFederal Tax 
Considerations" and "Risk Factors Relating to the Securities" in the 
accompanying product supplement and"Summary Risk Factors" in this pricing 
supplement.

There are no statutory, judicial or administrative authorities thataddress the 
U.S. federal income tax treatment of the securities or instruments that are 
similar to the securities. In the opinion of ourcounsel, Davis Polk & Wardwell 
LLP, it is more likely than not that a security will be treated as a prepaid 
financial contract thatis an "open transaction" for U.S. federal income tax 
purposes. By purchasing a security, you agree (in the absence of an 
administrativedetermination or judicial ruling to the contrary) to this 
treatment. There is uncertainty regarding this treatment, and the IRS or a 
courtmight not agree with it. Moreover, our counsel's opinion is based on 
market conditions as of the date of this preliminary pricingsupplement and is 
subject to confirmation on the pricing date.

Assuming this treatment of the securities is respected and subject tothe 
discussion in "United States Federal Tax Considerations" in the accompanying 
product supplement, the following U.S. federalincome tax consequences should 
result under current law:


 . You should not recognize taxable income over the term of the securities
   prior to maturity, other than pursuant to a sale or exchange.          



 . Upon a sale or exchange of a security (including retirement at maturity),    
   you should recognize gain or loss equal to the differencebetween the amount  
   realized and your tax basis in the security. Such gain or loss should be     
   long-term capital gain or loss if you heldthe security for more than one year


Please see the discussion under "United States Federal Tax Considerations-TaxCon
sequences to U.S. Holders-Securities Treated as Prepaid Forward Contracts" in 
the accompanying product supplement for furtherdiscussion about the U.S. 
federal income tax consequences of the ownership and disposition of the 
securities.

We do not plan to request a ruling from the IRS regarding the treatmentof the 
securities. An alternative characterization of the securities could materially 
and adversely affect the tax consequences of ownershipand disposition of the 
securities, including the timing and character of income recognized. In 
addition, the U.S. Treasury Departmentand the IRS have requested comments on 
various issues regarding the U.S. federal income tax treatment of "prepaid 
forward contracts"and similar financial instruments and have indicated that 
such transactions may be the subject of future regulations or other 
guidance.Furthermore, members of Congress have proposed legislative changes to 
the tax treatment of derivative contracts. Any legislation, Treasuryregulations 
or other guidance promulgated after consideration of these issues could 
materially and adversely affect the tax consequencesof an investment in the 
securities, possibly with retroactive effect. You should consult your tax 
adviser regarding possible alternativetax treatments of the securities and 
potential changes in applicable law.

Non-U.S. Holders
. Subject to the discussions below and in "UnitedStates Federal Tax 
Considerations" in the accompanying product supplement, if you are a Non-U.S. 
Holder (as defined in the accompanyingproduct supplement) of the securities, 
you generally should not be subject to U.S. federal withholding or income tax 
in respect of anyamount paid to you with respect to the securities, provided 
that (i) income in respect of the securities is not effectively connectedwith 
your conduct of a trade or business in the United States, and (ii) you comply 
with the applicable certification requirements.

As discussed under "UnitedStates Federal Tax Considerations-Tax Consequences 
to Non-U.S. Holders" in the accompanying product supplement, Section 871(m)of 
the Code and Treasury regulations promulgated thereunder ("Section 871(m)") 
generally impose a 30% withholding tax on dividendequivalents paid or deemed 
paid to Non-U.S. Holders with respect to certain financial instruments linked 
to U.S. equities ("U.S.Underlying Equities") or indices that include U.S. 
Underlying Equities. Section 871(m) generally applies to instruments that 
substantiallyreplicate the economic performance of one or more U.S. Underlying 
Equities, as determined based on tests set forth in the applicable 
Treasuryregulations. In light of the fact that the payout on the securities is 
inversely related to the performance of the underlying, paymenton the 
securities to Non-U.S. Holders will not be subject to Section 871(m).

A determination that the securitiesare not subject to Section 871(m) is not 
binding on the IRS, and the IRS may disagree with this treatment. Moreover, 
Section 871(m) iscomplex and its application may depend on your particular 
circumstances, including your other transactions. You should consult your 
taxadviser regarding the potential application of Section 871(m) to the 
securities.

If withholding tax applies to the securities, we will not be requiredto pay 
any additional amounts with respect to amounts withheld.

You should read the section entitled "United States FederalTax Considerations" 
in the accompanying product supplement. The preceding discussion, when read in 
combination with that section,constitutes the full opinion of Davis Polk & 
Wardwell LLP regarding the material U.S. federal tax consequences of owning 
and disposingof the securities.

You should also consult your tax adviser regarding all aspects ofthe U.S. 
federal income and estate tax consequences of an investment in the securities 
and any tax consequences arising under the lawsof any state, local or non-U.S. 
taxing jurisdiction.


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Citigroup Global Markets Holdings Inc.
                                      

Supplemental Plan of Distribution

CGMI, an affiliate of Citigroup Global Markets Holdings Inc. and theunderwriter 
of the sale of the securities, is acting as principal and will receive an 
underwriting fee of up to $20.00 for each securitysold in this offering. The 
actual underwriting fee will be equal to the selling concession provided to 
selected dealers, as describedin this paragraph. From this underwriting fee, 
CGMI will pay selected dealers not affiliated with CGMI a variable selling 
concession ofup to $20.00 for each security they sell.

See "Plan of Distribution; Conflicts of Interest" in theaccompanying product 
supplement and "Plan of Distribution" in each of the accompanying prospectus 
supplement and prospectusfor additional information.

Valuation of the Securities

CGMI calculated the estimated value of the securities set forth on thecover 
page of this pricing supplement based on proprietary pricing models. CGMI's 
proprietary pricing models generated an estimatedvalue for the securities by 
estimating the value of a hypothetical package of financial instruments that 
would replicate the payout onthe securities, which consists of a fixed-income 
bond (the "bond component") and one or more derivative instruments 
underlyingthe economic terms of the securities (the "derivative component"). 
CGMI calculated the estimated value of the bond componentusing a discount rate 
based on our internal funding rate. CGMI calculated the estimated value of the 
derivative component based on a proprietaryderivative-pricing model, which 
generated a theoretical price for the instruments that constitute the 
derivative component based on variousinputs, including the factors described 
under "Summary Risk Factors-The value of the securities prior to maturity will 
fluctuatebased on many unpredictable factors" in this pricing supplement, but 
not including our or Citigroup Inc.'s creditworthiness.These inputs may be 
market-observable or may be based on assumptions made by CGMI in its 
discretionary judgment.

The estimated value of the securities is a function of the terms ofthe 
securities and the inputs to CGMI's proprietary pricing models. As of the date 
of this preliminary pricing supplement, it isuncertain what the estimated 
value of the securities will be on the pricing date because certain terms of 
the securities have not yetbeen fixed and because it is uncertain what the 
values of the inputs to CGMI's proprietary pricing models will be on the 
pricingdate.

For a period of approximately three months following issuance of thesecurities, 
the price, if any, at which CGMI would be willing to buy the securities from 
investors, and the value that will be indicatedfor the securities on any 
brokerage account statements prepared by CGMI or its affiliates (which value 
CGMI may also publish through oneor more financial information vendors), will 
reflect a temporary upward adjustment from the price or value that would 
otherwise be determined.This temporary upward adjustment represents a portion 
of the hedging profit expected to be realized by CGMI or its affiliates over 
theterm of the securities. The amount of this temporary upward adjustment will 
decline to zero on a straight-line basis over the three-monthtemporary 
adjustment period. However, CGMI is not obligated to buy the securities from 
investors at any time. See "Summary RiskFactors-The securities will not be 
listed on any securities exchange and you may not be able to sell them prior 
to maturity."

Contact

Clients may contact their local brokerage representative. Third-partydistributor
s may contact Citi Structured Investment Sales at (212) 723-7005.

(c) 2023 Citigroup Global Markets Inc. All rights reserved. Citiand Citi and 
Arc Design are trademarks and service marks of Citigroup Inc. or its 
affiliates and are used and registered throughout theworld.



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  11


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