Prince William Sound
General data
- Name: Prince William Sound
- Water system: Gulf of Alaska
- Water type: Bay
- Progression: Gulf of Alaska -> Pacific Ocean -> Planet Earth
- Climates: Subpolar
- Continents: North America
- Countries: United States of America
Prince William Sound (Sugpiaq: Suungaaciq) is a sound off the Gulf of Alaska on the south coast of the U.S. state of Alaska.