The Poet and the Lunatics: Episodes in the Life of Gabriel Gale is a 1929 work by G. K. Chesterton. It consists of a series of short stories about Gabriel Gale, who is a poet and painter. Every story involves another character who is mad in some way. The work is sometimes called a novel, and usually categorized as detective fiction.
The stories were first published in Nash's Magazine in 1921. John C. Tibbetts describes them as "among Chesterton's most evocative twilight tales."