The lake trout is a freshwater char living mainly in lakes in northern North America. Other names for it include mackinaw, namaycush, lake char , touladi, togue, and grey trout. In Lake Superior, it can also be variously known as siscowet, paperbelly and lean. The lake trout is prized both as a game fish and as a food fish. Those caught with dark coloration may be called mud hens.
Note that in Europe a subspecies of the brown trout is called lake trout; to avoid confusion this species is referred to as "brown trout" in the Americas.