Coarse fishing (Irish: garbhiascaireacht, Welsh: pysgota bras) is a phrase commonly used in Great Britain and Ireland. It refers to the angling for rough fish, which are fish species considered undesirable as food or game fish. Freshwater game fish are all salmonids, particularly salmon, trout and char. Generally, coarse fish are freshwater fish that are not salmonids, though there is often disagreement over whether grayling should be classified as a game fish or a coarse fish.
Fly fishing is the technique usually used for freshwater game fishing, while other angling techniques are usually used for coarse fishing. The sport of coarse fishing and its techniques are particularly popular in the United Kingdom and mainland Europe, as well as in some former British Commonwealth countries and among British expatriates.