| Plymouth Sound | |
|---|---|
 Image of the Breakwater and the Mewstone | |
  Plymouth Sound | |
| Coordinates | 50°21′34.8″N 4°8′34.8″W / 50.359667°N 4.143000°W |
| Type | Bay |
| Primary inflows | Hamoaze |
| River sources | |
| Primary outflows | English Channel |
| Max. length | 6 kilometres (3.7 mi) |
| Max. width | 6 kilometres (3.7 mi) |
Plymouth Sound, or locally just The Sound, is a deep inlet or sound in the English Channel near Plymouth in England.