Coordinates: 35°41′49.7″N 139°46′15.5″E / 35.697139°N 139.770972°E / 35.697139; 139.770972
Mansei Bridge (万世橋, Manseibashi) is a concrete single arch bridge across the Kanda River in Chiyoda, Tokyo. Two public transport stations and a police station nearby are named after this bridge.
Various bridges made of wood or stone stood in this place, which was one of Tokyo's city gates. The latest bridge was constructed in 1930. The street on the bridge is the National Route 17.