Erdenheim Farm is a 450-acre (1.82 km2) working farm in Springfield and Whitemarsh Townships, Montgomery County, Pennsylvania, United States. Located just outside the Chestnut Hill section of Philadelphia, it is bordered by the Morris Arboretum to the east, to the south, Carson Valley School to the north, and Corson's Quarry to the west. The Wissahickon Creek flows through the farm and Stenton Avenue crosses it. All but 23 acres of the land is now protected from development by preservation easements.