Accotink Creek is a 25.0-mile-long (40.2 km)[5] tributary stream of the Potomac River in Fairfax County, Virginia, in the United States.

The stream empties into the Potomac at Gunston Cove's Accotink Bay, to the west of Fort Belvoir.

According to the Geographic Names Information System, it has also been known historically as:[1] Accotink Creek rises near the intersection of Rt.

Accotink Creek then flows southeast to meet the Potomac River in Accotink Bay at Fort Belvoir Military Reservation.

[2] Accotink Creek drains 52.82 square miles (136.8 km2) of area, receives about 43.7 in/year of precipitation, has a topographic wetness index of 436.37 and is about 22.5% forested.