The fourteenth season of the American television sitcom series It's Always Sunny in Philadelphia premiered on FXX on September 25, 2019.

On April 1, 2016, the series was renewed for a thirteenth and fourteenth season, which tied it with The Adventures of Ozzie and Harriet as the longest-running (in number of seasons) live-action sitcom in American television history.

Glenn Howerton made his directorial debut, directing the first two produced episodes of the season.

On Rotten Tomatoes, it has an approval rating of 83% with an average score of 7.6 out of 10 based on 12 reviews.

The website's critical consensus is, "Always Sunny's provocative humor has lost some bite, but the patrons of Paddy's Pub ought to be pleased by the Gang's inability to cope with modernity – and each other.