Delia (also ) is a municipality (comune, cumune) in the province of Caltanissetta in the Italian region Sicily, located about southeast of Palermo and about southwest of Caltanissetta. As of 31 December 2004, it had a population of 4,486 and an area of .
Delia borders the following municipalities: Caltanissetta, Canicattì, Naro.