The Three Stigmata of Palmer Eldritch is a 1964 science fiction novel by American writer Philip K. Dick. It was nominated for the Nebula Award for Best Novel in 1965. Like many of Dick's novels, it utilizes an array of science fiction concepts and explores the ambiguous slippage between reality and unreality. It is one of Dick's first works to explore religious themes.

Philip Kindred Dick, often referred to by his initials PKD, was an American science fiction writer and novelist. He wrote 44 novels and about 121 short stories, most of which appeared in science fiction magazines during his lifetime. His fiction explored varied philosophical and social questions such as the nature of reality, perception, human nature, and identity, and commonly featured characters struggling against elements such as alternate realities, illusory environments, monopolistic corporations, drug abuse, authoritarian governments, and altered states of consciousness. He is considered one of the most important figures in 20th century science fiction.