National Route 347
国道347号
Route information
Length	90.1 km[1] (56.0 mi)
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
← National Route 346 → National Route 348

National Route 347 is a national highway of Japan connecting Sagae, Yamagata and Ōsaki, Miyagi in Japan, with a total length of 90.1 km (55.99 mi).

A segment of Route 347 between Obanazawa, Yamagata and Kami, Miyagi is closed in winter.^{[citation needed]}