Martin and Lewis were an American comedy duo, comprising singer Dean Martin and comedian Jerry Lewis. They met in 1945 and debuted at Atlantic City's 500 Club on July 25, 1946; the team lasted ten years to the day. Before they teamed up, Martin was a nightclub singer, while Lewis performed a comedy act lip-synching to records.

A double act is a form of comedy originating in the British music hall tradition, and American vaudeville, in which two comedians perform together as a single act, often highlighting differences in their characters' personalities. Pairings are typically long-term, in some cases for the artists' entire careers. Double acts perform on the stage, television and film.