Lake McDonald (disambiguation)
Lake McDonald may mean:

Lakes
Lake McDonald, a lake in Glacier National Park, Montana, United States
McDonald Lake (Idaho), a glacial lake in Custer County, Idaho, United States
McDonald Lake (Nova Scotia), a lake in Richmond County, Nova Scotia, Canada
McDonald Lake (Saskatchewan), a lake in Saskatchewan, Canada, created when the Rafferty Dam was built in 1994

Buildings
Lake McDonald Lodge, a lodge in Glacier National Park, Montana, United States
Lake McDonald Lodge Coffee Shop, a building in Glacier National Park, Montana, United States

Communities
Lake Macdonald, Queensland, a suburb of the Sunshine Coast, Queensland, Australia
Lake McDonald, Montana, a community in the United States