Simon the Jester is a novel by by William J. Locke, first published in 1910 and twice made into films, in 1915 and 1925, both silent.

After learning he has but six months to live, the wealthy Simon de Gex decides to tell no one of his impending death and to spend his fortune madly.

Arthur Linfoot wrote that he had “read a lot of a story called Simon the Jester” on 22 June 1916 while stationed at Rainneville in northern France during the build up to the battle of the Somme. He finished the book the next day.