John F. Kirby (born June 3, 1963) is a retired United States Navy rear admiral who served as White House National Security Communications Advisor from 2022 to 2025.

[3] Kirby was commissioned in September 1986 after completing Officer Candidate School at Naval Station Newport, Rhode Island.

He led the Navy's public affairs community, which consists of more than 2,700 active and reserve officer, enlisted, and civilian communication professionals.

[8] In October 2014, Senator John McCain disputed Kirby's contention that the U.S. was winning its war against the Islamic State of Iraq and Syria, and called him an "idiot".

[18] On March 11, 2021, Kirby condemned Tucker Carlson for his comments that accommodations for women in uniform, particularly maternity wear and haircut regulations, reduce the readiness and effectiveness of the United States military.

[19] On May 19, 2022, the White House announced that Kirby would be leaving the Pentagon to join the National Security Council as Coordinator for Strategic Communications.

In this role, Kirby will "coordinate inter-agency efforts to explain United States policy and will serve as a senior administration voice on related matters".

"[24] In January 2024, Kirby rejected calls for a ceasefire in the Israel-Hamas war and assured that President Biden "supports Israel being able to defend itself.