"Have Gun, Will Travel" is an American Western radio and television series that aired from 1957 to 1963. Combining Western and Private Eye genres, the story revolves around Paladin, a principled gun-for-hire played by John Dehner on the radio and Richard Boone on TV. Set in the Old West, Paladin works for people whom he believes were wronged and can pay. The character stems from a wealthy family, is well-educated, and has a strict personal code of honor.

The popular TV series, which had 225 episodes, successfully transitioned to radio, airing 106 episodes between 1958 and 1960. The radio show, produced by the CBS Radio Network, was one of the last radio dramas featuring continuing characters and included both adaptations and original stories. Notably, Star Trek's Gene Roddenberry was one of the lead writers for the series.