Historic RittenhouseTown, sometimes referred to as Rittenhouse Historic District, encompasses the remains of an early industrial community which was the site of the first paper mill in British North America. The mill was built in 1690 by William Rittenhouse and his son Nicholas on the north bank of Paper Mill Run near Philadelphia, Pennsylvania. The district, off Lincoln Drive near Wissahickon Avenue in Fairmount Park, includes six of up to forty-five original buildings. RittenhouseTown was listed on the National Register of Historic Places and was designated a National Historic Landmark District on April 27, 1992.

William Rittenhouse was an American papermaker and businessman. He served as an apprentice papermaker in the Netherlands and, after moving to the Pennsylvania Colony, established the first paper mill in the North American colonies, helping to meet the growing demand for paper among the Early American publishers and printers. Rittenhouse married Geertruid Pieters of Eerbeck, Holland, in 1665, before emigrating to the Americas. Rittenhouse was also the first Mennonite bishop in America. Along with his two sons, and their descendants, the Rittenhouse family maintained a papermaking business in Pennsylvania for well over one hundred years. The site of the original mill is now preserved as the Historic RittenhouseTown district of Philadelphia.