The lake trout occurs over most of Canada, including western Nova Scotia, New Brunswick, Quebec, and most of Ontario. Lakers are also common in the more northerly portions of Manitoba, Saskatchewan, Alberta, and British Columbia. They have become abundant in the Yukon, the Northwest Territories, and many of the Arctic islands.

Labrador is world reknown for its incredible catches of Lake Trout. World record lake trout have been angled in the waters of Labrador, Canada.