Mortal Kombat: Legacy is an American web series adapted from the Mortal Kombat video game franchise. It debuted on Machinima.com's YouTube channel on April 11, 2011. The second season was released in its entirety on September 26, 2013.

The show's premise originated with director Kevin Tancharoen's short film, Mortal Kombat: Rebirth (2010), which portrayed the background to the original game's story, albeit in more grounded fashion. Seeking the green-light from the studio for production on a re-imagined Mortal Kombat film, he submitted the concept to Warner Bros. Pictures after having presented it to both Midway Games (Warner purchased Mortal Kombat and other assets from the original owners of the property in 2009) and New Line Cinema (the original Mortal Kombat film rights holder became a division/label of the larger studio in 2008), which declined to back the film, despite the attention and positive fan reception. Instead Tancharoen got the go-ahead to shoot the web series.