lingcod, (Ophiodon elongatus), commercially popular species of fish in the family Hexagrammidae (order Scorpaeniformes). A voracious predator, the lingcod has a large mouth and canine-like teeth for eating fishes and other aquatic prey, including squid. The species is strictly marine, occurring along the Pacific coast of North America.
Lingcods are popular game and commercial fish that may reach a length of 1.5 metres (5 feet). They have well-developed fins and tails. Although the meat has a greenish colour, it is considered highly edible. The lingcod belongs to the greenling (q.v.) group of fishes.