Bonecrusher has several meanings:
- Bone crusher, a machine used to crush animal bones
- Bonecrusher (horse), a retired New Zealand racehorse
- Bonecrusher (Transformers), a fictional character in the various Transformers universes
- Bone Crusher (rapper), an American rapper/singer based in Atlanta
- Bonecrusher (band), a Californian punk band
- James Smith (boxer) (born 1953), a.k.a. "Bonecrusher", an American boxer
- Bonecrusher (song), a song by American rock band Soulhat
- Bonecrusher, a term commonly applied to heavy-duty construction vehicles
- Bonecrusher or Bonebreaker, popular names for the Bearded Vulture