Why Would I Lie? is a 1980 American comedy/drama film about a compulsive liar named Cletus (Treat Williams). The film, which was directed by Larry Peerce and shot in Spokane, Washington, is based on the novel The Fabricator by Hollis Hodges.

Cletus is a compulsive liar. He prefers the term 'fabrication' to lie though. When Cletus becomes a social worker he's assigned the case of a boy called Jorge (with a 'J') who was taken from his mother. Cletus sets out to reunite Jorge with his mother, but to do so he has to fabricate many a story to keep Jorge from being adopted. In search of the mother, Cletus meets and falls in love with a women's advice councillor. Written by Rob Hartill