Spearfish

Spearfish may refer to:

Places

 * Spearfish, South Dakota, United States
 * North Spearfish, South Dakota, United States
 * Spearfish Formation, a geologic formation in the United States

Biology

 * Tetrapturus, a genus of marlin with shorter rostrum (a.k.a. snout or bill) and stunted sail behind the dorsal fin
 * Longbill spearfish, native to the Atlantic Ocean
 * Mediterranean spearfish, native to the Mediterranean Sea
 * Shortbill spearfish, native to the Indo-Pacific
 * Roundscale spearfish, native to the Eastern Atlantic to the western Mediterranean
 * Spearfish remora, a species of remora found around the world in tropical and subtropical seas
 * Spearfish Fisheries Center, one of 70 fish hatcheries as part of the National Fish Hatchery System of the U.S. Fish and Wildlife Service

Military

 * Spearfish torpedo, or simply Spearfish, is a modern torpedo built by GEC-Marconi
 * Fairey Spearfish, a prototype dive bomber of the immediate post World War II period
 * HMS Spearfish (69S), a 1936 British S-class submarine lost in World War II
 * USS Spearfish (SS-190), a US submarine in World War II