Mapped Ontario lakes over 1,000 acres (405 ha)

Every lake on this site covering more than 1,000 acres (405 ha), by Ontario MNRF survey outline. This ranks only the lakes mapped on this site — some of Ontario’s best-known waters, including Lake Nipigon, Lake of the Woods and Lake Muskoka, have no usable survey here and are simply absent, not smaller or shallower. Lakes that cross a provincial or international border are ranked by the part the Ontario survey maps.

756 lakes