The Oak Park Historic District is a national historic district that is located in Hatfield Township, Montgomery County, Pennsylvania.
It was added to the National Register of Historic Places in 1998.
This district encompasses thirty-three contributing buildings and one contributing structure that date from 1912 to the 1980s. The residences, which are located in a planned residential neighborhood, reflect a variety of popular late nineteenth- and twentieth-century architectural styles, including Bungalow/American Craftsman, cottage revival, and Colonial Revival. The contributing structure is the entry gate to the suburban development.