- Martin Island
- Martin Islands
- Mary Island
- Mary Island
- Mary Island
- Marys Igloo
- Marys Rock
- Matanuska
- Matushka Island
- Maurelle Islands
- Mavis Island
- May Creek
- McCallum
- McClellan Group
- McClellan Rock
- McClure Islands
- McCord
- McCulloch Rock
- McDonald Islands
- McDougal
- McFarland Islands
- McHenry Islet
- McKenzie Rock
- McNeil Islet
- Meade River
- Meadow Island
- Meakerville
- Mean Rock
- Meares Island
- Medfra