"Homer vs. the Eighteenth Amendment" is the eighteenth episode of the eighth season of the American animated television series The Simpsons. It originally aired on the Fox network in the United States on March 16, 1997. In the episode, Springfield enacts prohibition after a raucous Saint Patrick's Day celebration. To supply Moe's speakeasy, Homer becomes a bootlegger. The episode was written by John Swartzwelder and directed by Bob Anderson. Dave Thomas guest stars as Rex Banner and Joe Mantegna returns as Fat Tony.

The eighth season of the American animated television series The Simpsons originally aired on the Fox network between October 27, 1996, and May 18, 1997, beginning with "Treehouse of Horror VII". The showrunners for the eighth production season were Bill Oakley and Josh Weinstein, while the season was produced by Gracie Films and 20th Century Fox Television. The broadcast season contained two episodes with 3F-series production codes, indicating that were hold-over episodes from the seventh production season, and two episodes with 3G-series production codes, which have never been explicitly confirmed to be part of any specific production season