Canada
Countries of the world
M
- (Lanark County) Maberly
- (Laurentides) Mabel
- (Regional District of Mount Waddington) Murray Labyrinth
- (Regional District of Mount Waddington) Muirhead Islands
- (Regional District of Kitimat-Stikine) Mud Islands
- (Central Coast Regional District) Moss Islands
- (Regional District of Kitimat-Stikine) Moore Islands
- (Skeena-Queen Charlotte Regional District) Moffatt Islands
- (Skeena-Queen Charlotte Regional District) Modeets Islands
- (Strathcona Regional District) Mission Group
- (Regional District of Mount Waddington) Millar Group
- (Regional District of Mount Waddington) Masterman Islands
- (Central Coast Regional District) McNaughton Group
- (Powell River Regional District) Mary Islands
- (Central Coast Regional District) McMullin Group
- (Strathcona Regional District) Martin Islands
- (Regional District of Kitimat-Stikine) McKenney Islands
- (Regional District of Mount Waddington) Marsden Islands
- (Central Coast Regional District) McCroskie Islands
- (Skeena-Queen Charlotte Regional District) Mazarredo Islands
- (Central Coast Regional District) Mallory Islands
- (Skeena-Queen Charlotte Regional District) Middle Lawyer Island
- (Capitale-Nationale) Madame Island (historical)
- (Skeena-Queen Charlotte Regional District) Mutus Island
- (Saint John County) Musquash Island
- (Skeena-Queen Charlotte Regional District) Murchison Island
- (Regional District of Kitimat-Stikine) Munro Island
- (Regional District of Alberni-Clayoquot) Mullins Island
- (Regional District of Nanaimo) Mudge Island
- (Capital Regional District) Mowgli Island