McCoy House is a historic home located at Lewistown, Mifflin County, Pennsylvania, across from the Mifflin County Courthouse. It was built between 1836 and 1843, and is a -story, brick and frame dwelling in the Federal style. It has a gable roof and a double chimney linked at the base. Frank Ross McCoy was born in the house in 1874.
It was added to the National Register of Historic Places in 1973.
McCoy House is now owned by the Mifflin County Historical Society and serves as a museum of local history.