Wolf Fish, or Wolffish, a cold-water fish of the Atlantic and Pacific oceans. Its powerful jaws are armed with fangs with which, when caught, it snaps at everything within reach. The wolf fish of the Atlantic Coast of North America grows up to five feet (1.5 m) long. The Pacific Coast wolf fish attains a length of eight feet (2.4 m).

Wolf fishes form the genus Anarhichas of the wolffish family, Anarhichadidae. The Atlantic wolf fish is A. lupus; the Pacific, A. orientalis.