Shao Kahn is a fictional character in the Mortal Kombat fighting game franchise by Midway Games and NetherRealm Studios. Depicted as emperor of the fictional realm Outworld, he is one of the franchise’s primary villains. Feared for his immense strength, which he complements with a large hammer, and knowledge of black magic, Shao Kahn seeks conquest of all the realms, including Earth. He serves as the final boss of Mortal Kombat II (1993), Mortal Kombat 3 (1995) and its updates, and the 2011 reboot, as well as the action-adventure spin-off Mortal Kombat: Shaolin Monks (2005). An amalgam of Shao Kahn and DC Comics villain Darkseid also appears as the final boss of Mortal Kombat vs. DC Universe (2009) under the name Dark Kahn.

Shao Kahn is one of the most celebrated villains in video games. While noted as a difficult boss, he has received praise for his design, in-game abilities, and mannerisms, particularly his mocking and taunting of players. The character has appeared in various media outside of the games, including as the main villain of the film Mortal Kombat: Annihilation (1997).