Clear Spring is a town in Washington County, Maryland, United States. The population was 358 at the 2010 census.
The Joseph Fiery House, Wilson School, Rufus Wilson Complex, and Plumb Grove are listed on the National Register of Historic Places.
Clear Spring is located at 39°39′22″N 77°55′51″W (39.656011, -77.930828).
According to the United States Census Bureau, the town has a total area of 0.11 square miles (0.28 km2), all land.
The town is situated at the eastern base of Fairview Mountain. The area is underlain by Conococheague limestone. The spring after which the town is named is the only local source of ground water, from which the local run, Tom's Run, receives its volume.
The primary means of travel to and from Clear Spring are by road. U.S. Route 40 is the main highway directly serving the town, serving as the town's main street. US 40 continues westward towards Hancock and eastward to Hagerstown. Maryland Route 68 is the other state highway serving the town. MD 68 reaches its western terminus at US 40 in Clear Spring, and heads eastward towards Williamsport.