The Drowsy Chaperone is a Canadian musical with music and lyrics by Lisa Lambert and Greg Morrison, and a book by Bob Martin and Don McKellar.

The story concerns a middle-aged, asocial musical theater fan who, feeling "blue", decides to play for the audience an LP of his favorite musical, the fictional 1928 show The Drowsy Chaperone. As the record plays, the show - a parody of 1920s American musical comedy - comes to life onstage, as the man wryly comments on the music, story and actors.

The Drowsy Chaperone debuted in 1998 at The Rivoli in Toronto, and, after a 2005 run in Los Angeles, opened on Broadway on May 1, 2006. The show was nominated for multiple Broadway and West End theatre awards, winning five Tony Awards and seven Drama Desk Awards. The show has had major productions in Toronto, Los Angeles, New York, London, Melbourne and Japan, as well as two North American tours as well as Batemans Bay in south eastern Australia.