The Lost World may refer to:
- The Lost World trope.
- The Lost World, the 1912 novel by Sir Arthur Conan Doyle.
- The Lost World, the 1925 film based on the 1912 novel.
- Sir Arthur Conan Doyle's The Lost World, TV series based on the 1912 novel.
- The Lost World, 2001 TV Mini Series based on the 1912 novel.
- The Lost World, 1995 sequel novel to Jurassic Park (1990) by Michael Crichton.
- The Lost World: Jurassic Park, 1997 film which is the sequel to Jurassic Park (1993), based on the above.
- The Lost World, 1998 film based on the 1912 novel.
- The Lost World, a 2002 animated series based on the 1912 novel.
If an internal link led you here, please change it to point to the specific article. Thanks!