The Constant Husband is a 1955 British comedy film, directed by Sidney Gilliat and starring Rex Harrison, Margaret Leighton, Kay Kendall, Cecil Parker, George Cole and Raymond Huntley.

With the help of psychologist Doctor Llewellyn, they trace a wife and home in London, but they go on to discover that she is just one of seven women whom he has bigamously married.

Returning to Cardiff he is arrested and a defence team formed to defend his character.

[5] The opening scenes were filmed on location at New Quay and Aberaeron, Ceredigion, Mid Wales, and others at Kensington, Millbank, Wormwood Scrubs, Holborn, and St. Paul's, London.

[7] In January 1955, Launder, Gilliat and the Boulting brothers formed a new company, British Lion Films Ltd., which took over the running of Shepperton as well as British Lion's distribution business, and the film finally received its world premiere at the London Pavilion on 21 April 1955.