One Wild Oat is a comedy play by the British writer Vernon Sylvaine which premiered in 1948.

Its West End run was at the Garrick Theatre with direction by the veteran entertainer Jack Buchanan.

[1] The cast originally included Robertson Hare and Alfred Drayton, who had appeared together in several of Sylvaine's farces and their subsequent film adaptations.

Two feuding neighbors, a barrister and a bookmaker, join forces to try and prevent their secret pasts from coming back to haunt them.

In 1951 the play was adapted into a film made at the Riverside Studios in Hammersmith and starring Robertson Hare and Stanley Holloway.