Mare Nostrum (Our Sea in Latin), is an affectionate Roman name for the Mediterranean Sea. It can also refer to:

• Mare Nostrum, a body of water, usually a sea or an ocean, that falls within the jurisdiction of a country (rather than being open waters).
• Mare Nostrum, a 2003 board game by Serge Laget.
• Mare Nostum, a 1983 board wargame in the Fronte Mare series.
• Mare Nostrum, a Spanish-language novel by Vicente Blasco Ibáñez.
  • Mare Nostrum, its 1926 silent film version.
• MareNostrum, the most powerful supercomputer in Europe, as of April 2005.

Latin phrases