List of dams in Japan
As a nation of islands and narrow, steep valleys, dams play a vital role in Japanese society as they are constructed primarily to control floods, supply water and generate hydroelectric power. The tallest dam in Japan is the high Kurobe Dam. The largest dam by structural volume in the country is the Tokuyama Dam with of rock-fill. Tokuyama also creates Japan's largest reservoir with a water volume of.
The dams are arranged by prefecture in the list below.