The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
Report for the Calendar Year or Quarter Ended: 03-31-2015
Check here if Amendment    Amendment Number:
This Amendment (Check only one.):    is a restatement.
   adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: CITIGROUP INC
Address: 399 PARK AVENUE
NEW YORK, NY  10022
Form 13F File Number: 028-02427

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: Ali L. Karshan
Title: Assistant Secretary
Phone: 212-559-1000
Signature, Place, and Date of Signing:
Ali L. Karshan New York,  NY 05-14-2015
[Signature] [City, State] [Date]
Report Type (Check only one.):
X 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
   13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
   13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 33
Form 13F Information Table Entry Total: 18,472
Form 13F Information Table Value Total: 103,456,763
(thousands)
List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Form 13F File Number Name
1 028-10815 Acciones y Valores Banamex, S.A. de C.V., Casa de Bolsa, integrante del Grupo Financiero Banamex
2 028-16164 Citi GSCP Inc.
3 028-10818 Citi Overseas Investments Bahamas Inc.
4 028-04289 Citibank (Switzerland)
5 028-04287 Citibank, N.A.
6 028-06215 Citibank Canada
7 028-05347 Citibank Overseas Investment Corp
8 028-11520 Citicorp
9 028-10819 Citicorp (Mexico) Holdings LLC
10 028-04349 Citicorp Banking Corp
11 028-12382 Citicorp Trust Delaware, National Association
12 028-12977 Citicorp Trust South Dakota
13 028-10293 Citigroup Alternative Investments LLC
14 028-16170 Citigroup Capital Partners Mexico, S. de R.L. de C.V.
15 028-11547 Citigroup Derivatives Markets Inc.
16 028-01114 Citigroup Financial Products Inc.
17 028-10817 Citigroup Global Markets Deutschland AG
18 028-04305 Citigroup Global Markets Europe Ltd
19 028-10821 Citigroup Global Markets Finance Corp & Co. beschrankt haftende KG
20 028-01109 Citigroup Global Markets Holdings Inc.
21 028-00541 Citigroup Global Markets Inc.
22 028-04311 Citigroup Global Markets International LLC
23 028-04309 Citigroup Global Markets Ltd
24 028-10295 Citigroup Investments Inc.
25 028-16171 Citi Niagra Holdings LLC
26 028-16666 Citigroup Private Equity LP
27 028-14268 COHM Overseas Mexico Holding, S. de R.L. de C.V.
28 028-10816 Grupo Financiero Banamex, S.A. de C.V.
29 028-10822 Impulsora de Fondos Banamex, S.A. de C.V., Sociedad Operadora de Sociedades de Inversion
30 028-16172 NAMGK Mexico Holding, S. de R.L. de C.V.
31 028-16173 TRV Holdings LLC
32 028-16174 TRV Investments LLC
33 028-02427 Citigroup Inc.