State Route 357 (SR 357) is a 2.353-mile-long (3.787 km) east–west state highway in the northern portion of U.S. state of Ohio. Existing entirely on South Bass Island in Lake Erie, the highway begins at its western terminus of West Shore Boulevard, about 0.75 miles (1.21 km) west of Put-in-Bay. SR 357 then travels northeast to its eastern terminus at a dead end at Lake Erie, approximately 2 miles (3.2 km) east of Put-in-Bay Village.