The Gadidae are a family of marine fish, included in the order Gadiformes, known as the cods, codfishes or true cods. It contains several commercially important fishes, including the cod, haddock, whiting, and pollock.Most gadid species are found in temperate waters of the Northern Hemisphere, but several range into subtropical, Subarctic and Arctic oceans, and a single (southern blue whiting) is found in the Southern Hemisphere.