Nishidaira Dam(西平ダム, Nishidaira damu) is a hydroelectric dam on the Ibi River in Ibigawa, in the Gifu Prefecture of Japan. The dam was completed in 1939.

35°30′51″N 136°32′00″E/35.5143°N 136.5334°E/ 35.5143; 136.5334