Razor Man is a fictional supervillain from the Marvel Comics universe. He first appeared in The Amazing Spider-Man #229, created by writer Roger Stern and artist John Romita Jr. He is a former scientist who was mutated by an experimental razor-like weapon, giving him superhuman strength and razor-sharp claws. His real name is Carl Mach, and he has been a recurring enemy of Spider-Man and other Marvel superheroes. His alias, Occam, is derived from the philosophical principle of Occam's Razor, which states that the simplest explanation is usually the correct one.