Katherine "Kat" Clare Timpf (/tɪmf/; born October 29, 1988)[2][3] is an American libertarian columnist, television personality, reporter, and comedian.

She has worked as a digital editor for The Washington Times, as the news anchor for NASA's Third Rock Radio, and as a producer and reporter for Total Traffic Network in Santa Ana, California.

[4] Timpf was a 2012 Robert Novak Journalism Fellowship Program grant award recipient through The Fund for American Studies, and completed a project titled, “As California Goes, So Goes the Nation: The Consequences of Following Golden State Policy.”[4] Timpf has appeared on television and radio programs, including America Live with Megyn Kelly, Your World with Neil Cavuto,[6] Fox and Friends, Red Eye,[7] Stossel, Gutfeld!,[8] The Five, Outnumbered, The Big Weekend Show and The Nightly Show with Larry Wilmore.

[11] She hosted a weekly podcast called The Kat Timpf Show, in which she talks to a guest about random subjects, including her personal life.

Timpf served as a regular host of the weekend comedy show Fox News Saturday Night June 2023 through December 2023.

[19] In 2024, Timpf partnered with the charity Tunnels to Towers to sell shirts to benefit families of veterans killed in the line of duty.

[20] In the same year, Timpf went on her “I Used to Like You” comedy tour, which included a stop at the Scherr Forum Theatre in Thousand Oaks, California.