Lafayette Hill is a small unincorporated community in primarily Whitemarsh Township, Montgomery County in the Commonwealth of Pennsylvania. A small part of it is in Springfield Township. Lafayette Hill is located just west of Philadelphia's Chestnut Hill neighborhood, and south of Plymouth Meeting.

Lafayette Hill is home to the Barren Hill Volunteer Fire Company, one of the oldest fire companies in the area. It was founded after a fire destroyed a farm along with several livestock in 1915. Currently, Barren Hill Fire Company has roughly 400 to 500 calls for service each year. Their 1977 firehouse is located on 641 Germantown Pike. Whitemarsh Township is also served by the Spring Mill Fire Company.

Lafayette Hill is served by the Colonial School District. Notable people from Lafayette Hill, Pennsylvania include: Terrence Howard, John Salmons, Da'Rel Scott, Brad Furman, Reece Whitley, Minturn Wright (author of Birds of the World: Recommended English Names), Las Vegas talent mogul Steve Kaye , Billionaire Michael G. Rubin, and retired NBA player Allen Iverson.