FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Brown Marianne   2. Issuer Name and Ticker or Trading Symbol Fidelity National Information Services, Inc. [FIS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Corporate EVP - COO (Last) (First) (Middle) 601 RIVERSIDE AVE 3. Date of Earliest Transaction (Month/Day/Year) 03/29/2018 (Street) JACKSONVILLE, FL 32204 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/29/2018   F   3,649 (1) D $ 0 84,120.007 D   Common Stock 03/29/2018   F   2,951 (1) D $ 0 81,169.007 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Stock Option (Right to Buy)

$ 62.92

03/29/2018

A

63,475

(2)

03/29/2023

Common Stock

63,475

$ 0

126,949

D

Stock Option (Right to Buy)

$ 80.03

03/29/2018

A

47,132

(3)

03/29/2024

Common Stock

47,132

$ 0

47,132

D

Stock Option (Right to Buy)

$ 96.3

03/29/2018

A

70,225

(4)

03/29/2025

Common Stock

70,225

$ 0

70,225

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Brown Marianne 601 RIVERSIDE AVE JACKSONVILLE, FL 32204			Corporate EVP - COO

Signatures

/s/ Marc M. Mayo, attorney-in-fact		04/02/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Represents shares to satisfy withholding tax obligation for Restricted Stock vesting.
(2)	On March 29, 2016, the reporting person was granted an option to purchase 190,424 shares of common stock. The option vests in three equal installments based on FIS's satisfaction of certain performance criteria for each of the calendar years ending December 31, 2016, 2017 and 2018. Based on FIS's Annual Report on Form 10-K filed on February 23, 2018, the Compensation Committee of FIS determined that the performance criteria for 2017 had been met, resulting in vesting of the option as to 63,475 shares.
(3)	On March 29, 2017, the reporting person was granted an option to purchase 141,398 shares of common stock. The option vests in three equal installments based on FIS's satisfaction of certain performance criteria for each of the calendar years ending December 31, 2017, 2018 and 2019. Based on FIS's Annual Report on Form 10-K filed on February 23, 2018, the Compensation Committee of FIS determined that the performance criteria for 2017 had been met, resulting in vesting of the option as to 47,132 shares.
(4)	The option vests in three equal annual installments commencing on the first anniversary date of the grant.

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