Rowan & Martin’s Laugh-In was a sketch comedy television program which ran for 140 episodes to May 14, 1973. It was hosted by comedians Dan Rowan and Dick Martin and was broadcast over NBC-TV. It originally aired as a one-time special on September 9, 1967 and was such a success that it was brought back as a series, replacing The Man From U.N.C.L.E.. on Mondays at 8 pm (EST).

The title, Laugh-In, came out of events of the 1960s hippie culture, such as "love-ins" or "be-ins."