The Lost World is the name of:

• the Lost World literary genre;
• a novel by Arthur Conan Doyle; see The Lost World (Arthur Conan Doyle);
  • a 1925 film adaptation of the Doyle book; see The Lost World (1925 film);
  • a 1960 film adaptation of the Doyle book; see The Lost World (1960 film);
  • a 1992 film adaptation of the Doyle book; see The Lost World (1992 film);
  • a syndicated television series based on the Doyle book; see The Lost World (TV series);
  • a feature-length BBC adaptation of the Doyle book; see The Lost World (2001);
• a novel by Michael Crichton; see The Lost World (Michael Crichton);
  • the film adaptation of the Crichton book; see Jurassic Park;
    • an arcade game based on the film; see Jurassic Park (arcade game)'';
• a poetry collection by Randall Jarrell; see The Lost World (Randall Jarrell);
• the Japanese name of the video game Forgotten Worlds is Lost Worlds.

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