Lost World may refer to:

Look up lost world in Wiktionary, the free dictionary.

• The Lost World (Doyle novel), a 1912 book
• The Lost World (1925 film), a silent film set in South America
• The Lost World (1960 film), set in Venezuela, starring Michael Rennie and Jill St. John
• The Lost World (1992 film), set in Africa
• The Lost World (1998 film), set in Mongolia
• The Lost World (2001 film), a BBC film
• The Lost World (TV series) (Sir Arthur Conan Doyle's The Lost World), a television series
• "The Lost World", a radio drama in the Radio Tales series

• The Lost World (Crichton novel), a 1995 book
• The Lost World: Jurassic Park, a 1997 film
• The Lost World: Jurassic Park (film score)
• The Lost World: Jurassic Park (arcade game)
• The Lost World: Jurassic Park (console game)
• The Lost World: Jurassic Park (handheld game)
• The Lost World: Jurassic Park (Sega game)
• The Lost World: Jurassic Park (pinball)
• Chaos Island: The Lost World, a video game

• Lost World Caverns, West Virginia
• Lost World, a relict tropical rainforest on Cape Melville with unique fauna

• Lost lands
• Lost city
• Mythical place
• Mythical continents

This disambiguation page lists articles associated with the title Lost World.
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