Jackson "Jax" Briggs is a fictional character in the Mortal Kombat fighting game franchise by Midway Games and NetherRealm Studios. Introduced in Mortal Kombat II (1993) as the leader of a Special Forces unit, he became a mainstay of the series, including as the protagonist of the action-adventure spin-off Mortal Kombat: Special Forces (2000). The character is distinguished by his metal bionic arms, which he first received in Mortal Kombat 3 (1995), and his abilities are based around his upper-body strength.

Mortal Kombat is an American media franchise centered on a series of fighting video games originally developed by Midway Games in 1992.