The Lawrence Welk Show is an American televised musical variety show hosted by big band leader Lawrence Welk. The series aired locally in Los Angeles for four years, from 1951 to 1955, then nationally for another 16 years on ABC from 1955 to 1971, followed by 11 years in first-run syndication from 1971 to 1982. Repeat episodes are broadcast in the United States by Public Broadcasting Service (PBS) stations. These airings incorporate an original program—usually, a color broadcast from 1965 to 1982—in its entirety. In place of the commercials, newer performance and interview clips from the original stars and/or a family member of the performers are included; these clips are occasionally updated.

Variety show, also known as variety arts or variety entertainment, is entertainment made up of a variety of acts including musical performances, sketch comedy, magic, acrobatics, juggling, and ventriloquism. It is normally introduced by a compère or host. The variety format made its way from the Victorian era stage in Britain and America to radio and then television. Variety shows were a staple of English language television from the late 1940s into the 1980s.