The Basilica of the Sacred Heart of Jesus, also known as Conewago Chapel, is a Roman Catholic minor basilica dedicated to the Sacred Heart of Jesus located in Conewago Township (Adams County), Pennsylvania.

The Basilica was built between 1785 and 1787, and is constructed of brownstone with three-foot-thick walls.

It features a Federal style entrance with a semi-circular arched doorway and an 80-foot-high spire, added in 1873.

It is the oldest Roman Catholic church constructed of stone in the United States.

Prince Gallitzin spent the first five years of his priesthood at Conewago Chapel from 1795 to 1799.