Dagon [1] is a novel by author Fred Chappell published in 1968.

The novel is a psychological thriller with supernatural elements, attempting to tell a Cthulhu Mythos story as a psychologically realistic Southern Gothic novel.

It was awarded the Best Foreign Book of the Year prize by the French Academy in 1972.

[2] This early novel is one of the author's most widely read works.

In The New York Times, it was praised as being "of a very high order [and] precise, dry elegance".