John Penn (January 28, 1700 – October 25, 1746) was a proprietor of the colonial Province of Pennsylvania (later the American state – the Commonwealth of Pennsylvania after 1776). He was the eldest son of the colony's founder, William Penn (1644–1718), by his second wife, Hannah Callowhill Penn (1671–1726). Since he was the only one of Penn's children to be born in the New World, the Americas (in the Slate Roof House in Philadelphia), he was called "the American" by his family.