Japan National Route 37

National Route 37
National Route 37
国道37号
	Japan National Route 37 highlighted in red
Route information
Length	81.1 km (50.4 mi)
Existed	4 December 1952–present
Major junctions
West end	National Route 5 / National Route 230 in Oshamambe
	Dō-Ō Expressway; National Route 230; National Route 453;
East end	National Route 36 in Muroran
Location
Country	Japan
Highway system
	National highways of Japan; Expressways of Japan;

National Route 37 (国道37号, Kokudō Sanjūnana-gō) is a Japanese national highway connecting Oshamambe and Muroran in southwestern Hokkaido. The 81.1-kilometer-long (50.4 mi) highway begins at an intersection with national routes 5 and 230 in the town of Oshamambe. It travels along the northern side of Uchiura Bay, paralleling the Dō-Ō Expressway. At the eastern edge of the bay it enters the city of Muroran where it ends at an intersection with National Route 36.