UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.    )

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☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material Pursuant to 240.14a-12

HILTON WORLDWIDE HOLDINGS INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Stockholder Meeting to Be Held on May 24, 2017.

	HILTON WORLDWIDE HOLDINGS INC. HILTON WORLDWIDE HOLDINGS INC. 7930 JONES BRANCH DRIVE SUITE 1100 MCLEAN, VA 22102	Meeting Information Meeting Type:          Annual Meeting For holders as of:     March 31, 2017 Date:   May 24, 2017 Time:  10:00 A.M., Central Time Location:   Waldorf Astoria Chicago                      11 E. Walton                      Chicago, Illinois 60611
		You are receiving this communication because you hold shares in the company named above. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting.
		See the reverse side of this notice to obtain proxy materials and voting instructions.

— Before You Vote — How to Access the Proxy Materials
Proxy Materials Available to VIEW or RECEIVE: 1. Annual Report            2. Notice and Proxy Statement How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:
	1) BY INTERNET:	www.proxyvote.com
	2) BY TELEPHONE:	1-800-579-1639
	3) BY E-MAIL*:	sendmaterial@proxyvote.com
*  If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line.
Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 21, 2016 to facilitate timely delivery.

	— How To Vote — Please Choose One of the Following Voting Methods
	Vote In Person: Many stockholder meetings have attendance requirements. You will need proof of identification along with either this Notice, your Proxy Card or proof of ownership as of the record date. Please check the Proxy Statement for any special requirements for meeting attendance. To obtain directions to the meeting, please contact Investor Relations at 703-883-5476 or ir@hilton.com. At the meeting, you will need to request a ballot to vote these shares.
	Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions.
	Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

Voting Items

The Board of Directors recommends you vote FOR the following:
1.	Election of Directors
	Nominees:
	01)	Christopher J. Nassetta	06)	John G. Schreiber
	02)	Jonathan D. Gray	07)	Elizabeth A. Smith
	03)	Charlene T. Begley	08)	Douglas M. Steenland
	04)	Jon M. Huntsman, Jr.	09)	William J. Stein
	05)	Judith A. McHale
The Board of Directors recommends you vote FOR the following proposals:
2.	Approve the 2017 Omnibus Incentive Plan
3.	Ratify the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for fiscal 2017.
4.	To approve, by non-binding vote, compensation paid to the Company’s named executive officers.
NOTE: Such other business as may properly come before the meeting or any adjournment thereof.