"24 Minutes" is the twenty-first episode of the eighteenth season of the American animated television series The Simpsons. It originally aired on the Fox network in the United States on May 20, 2007 as part of the one-hour season finale, alongside the episode "You Kent Always Say What You Want". It was originally promoted as being the 400th episode, but was broadcast as the 399th. It was written by Ian Maxtone-Graham and Billy Kimball. It was Kimball's first writing credit.

The episode is a spoof of the Fox television drama 24, and sees Principal Skinner's new Counter Truancy Unit (CTU), led by Lisa Simpson, attempting to prevent a stink bomb being released at Springfield Elementary School. Guest stars include Kiefer Sutherland and Mary Lynn Rajskub as their respective characters from 24, Jack Bauer and Chloe O'Brian.

The episode received critical acclaim and won the 2008 Annie Award for Best Writing in an Animated Television Production.