| Frederica River | |
| Pushpin Map: | Georgia (U.S. state) |
| Pushpin Map Caption: | Location of mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Georgia |
The Frederica River is an 11adj=midNaNadj=mid[1] tidal river in Glynn County, Georgia. It forms the western boundary of Saint Simons Island of the Georgia Sea Islands. Fort Frederica National Monument is located on the eastern bank of the river on Saint Simons Island.[2]