The Incredible Tide is a post-apocalyptic science fiction novel for young adults written by Alexander Key, published in 1970. It was the source material for the 1978 Japanese anime television series Future Boy Conan, directed by Hayao Miyazaki.

Future Boy Conan , also known as Conan, The Boy in Future, is a Japanese post-apocalyptic science fiction anime series. It is an adaptation of American science-fiction writer Alexander Key's 1970 novel The Incredible Tide. It was broadcast for twenty-six episodes on NHK General TV between April and October 1978.