Pedro Navaja (English: Pedro Knife) is a salsa song written and performed by Rubén Blades from the 1978 collaboration with Willie Colón, Siembra, about a criminal of the same name. "Navaja" means knife or razor (hence an analogy to Blades' surname) in Spanish. Inspired by the song Mack the Knife, it tells the story of a panderer's life and his presumed death.