The Old Bridge (Turkish: Eski Köprü), also known as the Old Tigris Bridge, is a ruined four-arch bridge spanning the Tigris River in the town of Hasankeyf in Batman Province in southeastern Turkey. It was built by the Artuqid Turkmens in the mid-12th century, between about 1147 and 1172, and at the time its central arch was one of the largest in the world, if not the largest.