Sixth Fleet, subtitled "US/Soviet Naval Warfare in the Mediterranean in the 1970s", is a board wargame published by Simulations Publications Inc. (SPI) in 1975 that simulates a hypothetical attack against NATO forces in the Mediterranean Sea by naval forces of the Soviet Union. The game did not sell well, and several critics found that the tactics used in the game more closely resembled Napoleonic land battles rather than naval warfare in the 1970s.