Seal Bay may refer to:
- Antarctica
- Australia
- Seal Bay (South Australia), a bay on Kangaroo Island
- Seal Bay Aquatic Reserve, a marine protected area on the south coast of Kangaroo Island
- Seal Bay Conservation Park, a protected area on Kangaroo Island
- Seal Bay, South Australia, a locality on Kangaroo Island in Australia
- Falkland Islands
- United KIngdom
- Seal Bay, a holiday park in Selsey, West Sussex
- United States
- Seal Bay Seaplane Base, Alaska