| Blackwater River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Alabama |
| Subdivision Type3: | County |
| Subdivision Name3: | Baldwin County |
| Source1 Coordinates: | 30.6399°N -87.7022°W |
| Mouth: | Perdido River |
| Mouth Coordinates: | 30.4824°N -87.4353°W |
| Length Mi: | 30.3 |
Blackwater River is a 30.3adj=midNaNadj=mid[1] river in Baldwin County, Alabama. The Blackwater River originates at 30.6399°N -87.7022°W near Loxley, and discharges into the Perdido River at 30.4824°N -87.4353°W near Lillian.