Wharton Furnace is an historic iron furnace located at Wharton Township, Fayette County, Pennsylvania, United States. It was built in 1837, and is a stone structure measuring wide, deep, and high. It was built as a blast furnace, placed in blast in 1839 and went out of blast by 1850. It was built by Congressman Andrew Stewart (1791-1872).
It was added to the National Register of Historic Places in 1991.