The Unmentionables is a 1963 Warner Bros. Merrie Melodies cartoon directed by Friz Freleng. The short was released on September 7, 1963, and stars Bugs Bunny. It features Bugs with Rocky and Mugsy (in their final appearance), and spoofs The Untouchables, a popular television crime drama (complete with an impression of Walter Winchell's frantic narration by Ralph James; this was one of the few instances where someone other than Mel Blanc was credited with a voice role on a Warner Bros. cartoon. Julie Bennett was not credited for her voice work.In this cartoon, Bugs takes on the role of crime fighter Elegant Mess (a comedic reference to Eliot Ness). To design this cartoon, director Friz Freleng and his team studied the works of John Held Jr. This was the last Bugs Bunny cartoon that Freleng directed in the original classic era of Looney Tunes.

The title is also a synonym for "underwear". The cartoon later appeared (combined with two other Rocky and Mugsy cartoons) in The Looney Looney Looney Bugs Bunny Movie (1981).