Robert W. Derminer (December 12, 1944[1] – September 18, 1991), known as Rob Tyner, was an American musician best known as the lead singer for the Detroit proto-punk band MC5.

Tyner had originally auditioned as the bass player, but the band felt his talents would be best used as the lead vocalist.

He was baptized and raised in the Episcopal Church, but often sought ways to incorporate the spirituality from his Native American heritage into the Christian faith of his birth.

MC5 earned national attention with their first album, Kick Out the Jams, recorded live on October 30 and 31, 1968, at Detroit's Grande Ballroom.

On September 17, 1991, Tyner suffered a heart attack in the seat of his parked car close to his home town of Berkley, Michigan.