Summer of Night is the first in a series of horror novels by American writer Dan Simmons, published in 1991 by Warner Aspect.

Set in Elm Haven, Illinois, in 1960, Summer of Night recounts its five pre-teen protagonists' discovery that eerie, terrifying events are unfolding in the Old Central School.

Operatives, including a dead soldier; giant worms with rows of sharp, serrated teeth; the animated corpse of a deceased teacher; schoolyard bullies; the driver of a rendering truck; their school teacher, and the principal of the school, serve a centuries-old evil that seeks to be reborn in their time — and in their town.

Another sequel is Children of the Night, which features Mike O'Rourke, now a Roman Catholic priest, who is sent on a mission to investigate bizarre events in a European city.

Some of the incidents in the novel, such as the free show and the fair, are also based upon similar events that took place in Brimfield during Simmons' boyhood.