Mount Joy is an unincorporated community in Scioto County, in the U.S. state of Ohio.
A post office called Mount Joy was established in 1871, and remained in operation until 1918. The community was named for Thomas Mt. Joy, a land agent.
Wayne Blackburn, a baseball coach and team manager, was born at Mount Joy in 1914.
Coordinates: 38°57′05″N 83°10′25″W / 38.95139°N 83.17361°W