A monkey wrench is a type of adjustable spanner.

Monkey wrench may also refer to:

Pipe wrench, often incorrectly called a monkey wrench "Monkey Wrench" (song), by Foo Fighters, 1997 Monkeywrench Records, an independent United States–based record label "The Monkey Wrench", a 1951 short story by Gordon R. Dickson Monkeewrench (released later as Want to Play?), a 2003 novel by author team P. J. Tracy Monkeywrench, a fictional G.I. Joe character, member of the Dreadnoks faction of Cobra Monkeywrenching, a type of sabotage

See also Monkey Wretch, a character in Ninjago