Rob Holliday is an English musician best known as the live guitarist for the Prodigy and as a former touring member of Marilyn Manson.

[1] Holliday has also worked and toured with the Creatures and Gary Numan, been a member of the Mission and Flint, and is one of the founders and the frontman of the industrial rock band Sulpher.

Rob Holliday is half of the band Sulpher, having duties as a lyricist, guitarist, and lead vocalist.

Sulpher also includes Monti (Curve, Cocteau Twins, Gang of Four, the Jesus and Mary Chain) as producer, programmer, and drummer and Tim Mud as live guitarist.

Holliday did not contribute to the writing or recording of the band's album Eat Me, Drink Me, released in 2007.