Hammerlock is a form of the armlock in wrestling and martial arts. It may also refer to one of the following:
Hammerlock (dance), a type of dance handhold Hammerlock (film), a 2000 comedy film Hammerlock (band), a rock band Hammerlock (coupling link), the method for locking a CM Hammerlok Coupling Link for connecting chain.
See also Hammerlocke, a DC Comics science fiction limited series