A Game fish is a fish that is pursued for sport, regardless of whether the fisherman ultimately eats the fish. Gamefish may be part of a commercial fishery, such as salmon. They may also be exclusively fished for by recreational anglers, such as is the case with tarpon. (See also panfish, fished mainly for their food value.)

The most common game fish are the billfish species, salmon, trout, and bass. Common game fish have been transported worldwide. Rainbow trout, for instance, can now be found nearly anywhere that the climate is appropriate, from their original home on the Pacific Coast of North America to the mountains of southern Africa.

In Japan, where fishing has remained a popular hobby, bass-fishing has caught on. However imported black-bass are considered pests in some cases as they devour the eco-system.