| Chapman Bay | |
| Location: | Thurston County, Washington |
| Coordinates: | 47.1358°N -122.8461°W[1] |
| Type: | Bay |
| Inflow: | Libby Creek |
| Outflow: | Henderson Inlet |
| Pushpin Map: | Washington |
Chapman Bay is a small inlet of Henderson Inlet, which drains into Puget Sound in Washington. It is located in Thurston County and the nearest city is Olympia, the state capital.