Marq Torien (born Mark Joseph Maytorena; September 22, 1961) is an American musician, best known as the lead singer of the hard rock act BulletBoys.

The group recorded a five-song demo, which was heard by Sylvester Stallone during his search for new acts to perform songs for Rocky IV.

In addition to periodic BulletBoys ventures, Torien's solo projects included Sexual Chocolate, Ten-Cent Billionaires, and This.

Torien added vocals on the track "Texas Lawman" from The Regulators on their 1993 self-titled album on Polygram/Polydor.

The tracks being "Dogtown" and "One More Tonight" In the book Off the Rails by Rudy Sarzo, Sarzo tells a story about Torien's audition for the Ozzy Osbourne band after the death of Randy Rhoads as the group's guitarist.