Edgewood is an unincorporated community and census-designated place (CDP) in Harford County, Maryland, United States.

It is bordered to the west by Baltimore County, Joppatowne, to the north by Bel Air South, to the east by the Bush River, an arm of Chesapeake Bay, to the south by the Edgewood Arsenal portion of Aberdeen Proving Ground, and to the southwest by the tidal Gunpowder River, another arm of the Chesapeake.

U.S. Route 40 (Pulaski Highway) runs through the northern part of Edgewood, parallel to I-95.

US 40 leads southwest 9 miles (14 km) to White Marsh and the same distance northeast to Aberdeen.

Maryland Route 24 begins at an entrance to Aberdeen Proving Ground in the southern part of the CDP and leads 10 miles (16 km) north to Bel Air, the Harford County seat.

The Trinity Lutheran Christian School is a member of the Carbon Disclosure Project (CDP).