Kanmon Tunnel may refer to:
*
Kanmon Railway Tunnel
The was the first undersea tunnel in Japan. It goes underneath the Kanmon Straits, connecting the islands of Honshu and Kyushu. It is an important link in the Japanese rail network. Its construction began in 1936, and it was completed in Novem ...
, undersea rail tunnel connecting the islands of Honshu and Kyushu
*
Kanmon Roadway Tunnel
In Japan, the carries National Route 2 under the Kanmon Straits. At the time of its construction, it was the longest undersea highway in the world. , undersea road tunnel connecting Shimonoseki, Yamaguchi and Moji-ku, Kitakyūshū
*, undersea pedestrian tunnel underneath the Kanmon Roadway Tunnel
*
Shin-Kanmon Tunnel
The is a long undersea railway tunnel under the Kanmon Straits connecting Shin-Shimonoseki Station and Kokura Station.
At the time of opening in March of 1975, it was the longest railway tunnel in Japan before being overtaken by in 1988 t ...
, undersea rail tunnel connecting Shin-Shimonoseki Station and Kokura Station
{{disambig, structure