Japan National Route 186

National Route 186 is a national highway of Japan connecting Gōtsu, Shimane and Ōtake, Hiroshima in Japan, with a total length of 145.5 km (90.41 mi).

National Route 186
国道186号
Route information
Length	145.5 km[1] (90.4 mi)
Existed	18 May 1953–present
Major junctions
North end	National Route 9 in Gōtsu
South end	National Route 2 in Ōtake
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
← National Route 185 → National Route 187