Paw Paw is a town in Morgan County, West Virginia, United States. The population was 508 in the 2010 census. The town is known for the nearby Paw Paw Tunnel. Paw Paw was incorporated by the Circuit Court of Morgan County on April 8, 1891 and named for the pawpaw, a wild fruit which grows in abundance throughout this region. Paw Paw is the westernmost incorporated community in Morgan County and the Hagerstown-Martinsburg, MD-WV Metropolitan Statistical Area.
Paw Paw is located along the section of the Potomac River known as the Paw Paw Bends. The Paw Paw Valley is surrounded by the ridges of Sideling Hill, Green Ridge, Purslane Mountain and Town Hill.
The town is the namesake of the Paw Paw Tunnel which was part of the Chesapeake and Ohio Canal. Construction of the tunnel began in 1836 and was completed in 1850, 12 years behind schedule. Today, the tunnel and nearby canal are part of the Chesapeake and Ohio Canal National Historical Park.