Elgin Bridge is a vehicular box girder bridge across the Singapore River, linking the Downtown Core to the Singapore River Planning Area located within Singapore's Central Area. It was built between 1925 and 1929.

The Singapore River is a river that flows parallel to Alexandra Road and feeds into the Marina Reservoir in the southern part of Singapore. The immediate upper watershed of the Singapore River is known as the Singapore River Planning Area, although the western part of the watershed is classified under the River Valley planning area.