FXX is an American basic cable channel owned by the Disney Entertainment business segment and division of The Walt Disney Company through FX Networks, LLC. It is the partner channel of FX, with its programming focusing on original and acquired comedy series and feature films for a primary demographic of men ages 18–34.

FXX launched on September 2, 2013, at 7:00 a.m. ET/6:00 a.m. CT, replacing Fox Soccer. The channel set a record for the longest continuous marathon in the history of television with a marathon featuring every episode of The Simpsons that had been released at the time and The Simpsons Movie over the course of twelve days.[4] This record has since been broken by VH1 Classic.

As of November 2023, FXX is available to approximately 58,000,000 pay television households in the United States-down from its 2019 peak of 87,000,000 households.