Pennsville is an unincorporated community in Morgan County, in the U.S. state of Ohio.
Pennsville was platted in 1828.[1] The community took its name from Penn Township.[2] Pennsville was originally chiefly settled by Quakers. In 2017 the nearest Quaker Meeting house is in nearby Chesterhill A post office was in operation in Pennsville starting February 27, 1829; the post office was closed October 29, 1988, and the post office duties were moved to Stockport, Ohio.[3]