OUTFRONT Media Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.

SCHEDULE 14A

PROXY STATEMENT PURSUANT TO SECTION 14(a)

OF THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. )

Filed by the Registrantx Filed by a Party other than the Registranto

Check the appropriate box:

OUTFRONT Media Inc.

(Name of Registrant as Specified In Its Charter)

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

Payment of Filing Fee (Check the appropriate box):

April 21, 2026

Dear Stockholder:

You are cordially invited to attend the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of OUTFRONT Media Inc. on June 3, 2026, at 10:00 a.m., Eastern Time. In order to provide expanded access, improved communication and cost savings for our stockholders, the Annual Meeting will again be a virtual meeting. You will be able to attend the Annual Meeting and vote and submit questions during the Annual Meeting via a live audio webcast by visitingwww.virtualshareholdermeeting.com/OUT2026 and by following the procedures set forth in the proxy materials.

The matters expected to be acted upon at the meeting are described in detail in the accompanying Notice of Annual Meeting of Stockholders and proxy statement.

Your vote is important to us. Whether or not you plan to attend the Annual Meeting by webcast, we strongly urge you to cast your vote promptly. The enclosed materials contain instructions on how you can exercise your right to vote over the internet, by telephone or by mail.

Thank you for your continued support of OUTFRONT Media Inc.

Sincerely,

NICOLAS BRIEN

Chief Executive Officer

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

To OUTFRONT Media Inc. Stockholders:

Notice is hereby given that the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of OUTFRONT Media Inc., a Maryland corporation (the “Company”), will be held on June 3, 2026, at 10:00 a.m., Eastern Time, via a live audio webcast located atwww.virtualshareholdermeeting.com/OUT2026. The Annual Meeting will be held to consider and vote upon the following proposals:

1. To elect the director nominees named in the accompanying proxy statement, each to serve until the 2027 Annual Meeting of Stockholders and until his or her successor is duly elected and qualifies.

2. To ratify the appointment of PricewaterhouseCoopers LLP to serve as the Company’s independent registered public accounting firm for fiscal year 2026.

3. To approve, on a non-binding advisory basis, the compensation of the Company’s named executive officers, as disclosed in the accompanying proxy statement.

4. To approve the OUTFRONT Media Inc. Amended and Restated Omnibus Stock Incentive Plan.

5. To transact such other business as may properly come before the Annual Meeting or any postponement or adjournment thereof.

Only stockholders of record at the close of business on April 10, 2026 are entitled to notice of, and to vote at, the Annual Meeting or any postponement or adjournment thereof. Each stockholder of record is entitled to one vote for each share of common stock held at that time.

Your vote is important to us. You may cast your vote over the internet, by telephone, or by mail.

The proxy materials are first being made available to stockholders on or about April 21, 2026.

Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting of Stockholders to be held on June 3, 2026: the Company’s proxy statement and 2025 annual report to stockholders are available atwww.proxyvote.com.

By Order of the Board of Directors,

LOUIS J. CAPOCASALE

Corporate Secretary

April 21, 2026

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