- Arctic and Subarctic Seas
- Bering Sea
- Barents Sea
- Kara Sea
- Laptev Sea
- North Atlantic Ocean
- Gulf of Maine
- Newfoundland/Labrador
- Baffin Bay
- Iceland
- North Sea
- North Pacific Ocean
- Gulf of Alaska
- Puget Sound
- Pacific Coast of the United States and Canada
- Sea of Okhotsk
- Antarctic Waters
- Weddell Sea
- Ross Sea
- South Georgia and the South Sandwich Islands
Keep in mind that seal species tend to have specific areas within these regions of the world. Different seal species are adapted to thrive in various water temperatures, climates, and environments. Some also make migrations during their yearly cycles.