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 2+1⁄2-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.