The Loudoun Mansion is an historic, American house that is located in the Germantown neighborhood of Philadelphia, Pennsylvania.

[1][2] A contributing property of the Colonial Germantown Historic District, it was damaged by fire in 1993 and is not open to the public.

[5] The house stands on one of the highest Native American Mounds (the Lenni Lenape )overlooking Philadelphia and the Delaware River from Germantown.

During and after the Battle of Germantown many wounded soldiers were carried to the top of the hill where Loudoun now stands.

[3] It is alluded to significantly throughout the novel Loving Day by the African American novelist Mat Johnson.