The Gay Dog is a 1951 comedy play by the British author Joseph Colton. After its London premiere at the Q Theatre in Kew Bridge (under the title A Dog for Delmont it transferred to the Piccadilly Theatre in the West End where it ran for 276 performances between 11 June 1952 and 7 February 1953. The West End cast included Wilfred Pickles, Megs Jenkins, Harold Goodwin, Anthony Oliver, Brian Nissen, David King-Wood and Joan Hickson.
In 1954 it was adapted into a film of the same title directed by Maurice Elvey and starring Pickles and Jenkins alongside Petula Clark and Peter Butterworth.