Known world

known world may refer to:
 * the extent of geographic knowledge of a given culture at a given historical period, see history of geography
 * Early world maps lists a number of maps showing the known world from the perspective of various historical periods
 * Ecumene, a Greek geographical concept for the inhabited or known parts of the world
 * The Known World, a 2003 historical novel by Edward P. Jones
 * The Known World of A Song of Ice and Fire
 * The Known World of Mystara, a campaign setting in the role playing game Dungeons & Dragons