McArthur Lake, MacArthurs Lake, MacArthur's Lake, or variations, may refer to:
Australia
edit- MacArthur's Lake (Victoria), a lake near Hattah, Victoria
Canada
editBritish Colombia
edit- Lake McArthur in Yoho National Park west of Lake Louise (Alberta)
Ontario
edit- McArthur Lake, Ontario, south of Timmins
Northwest Territories
edit- McArthur Lake, Northwest Territories on the Taltson River
Quebec
edit- Lac McArthur (McArthur Lake), in the Outaouais region, near Denholm
United States
edit- McArthur Lake, Idaho
- McArthur Lake Wildlife Management Area which includes it
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