Lost World

The Lost World can refer to:
 * Lost World, a hidden world of Crocodile Isle in Donkey Kong Country 2: Diddy Kong's Quest, and its follow-up Donkey Kong Land 2.
 * Lost World, a hidden world of the Northern Kremisphere in Donkey Kong Land III.
 * Krematoa, the hidden world of the Northern Kremisphere in Donkey Kong Country 3: Dixie Kong's Double Trouble!, is also called the Lost World.