Mario D'Leon (born June 19, 1973, in Queens, New York) is an American actor, stuntman, and voice actor. He is best known for providing the voice for Luis Fernando Lopez in Grand Theft Auto IV, The Lost and Damned, and The Ballad of Gay Tony.

Aside from that, D'Leon has also appeared in TV shows such as Lights Out, Gotham, White Collar, Law & Order: Criminal Intent, The Onion News Network, Golden Boy and Law & Order: Special Victims Unit.