Captain 3-D is a superhero appearing in comic books published by Harvey Comics. Created by Joe Simon and Jack Kirby, the character marked an early attempt to produce a 3-D comic book.

Harvey Comics was an American comic book publisher, founded in New York City by Alfred Harvey in 1941, after buying out the small publisher Brookwood Publications. His brothers, Robert B. and Leon Harvey, joined shortly after. The company soon got into licensed characters, which, by the 1950s, became the bulk of their output. The artist Warren Kremer was closely associated with the publisher.