The Ōyūbari Dam (大夕張ダム, Ōyūbari damu) is a dam in the city of Yūbari, Hokkaidō, Japan.

Ōyūbari Dam
LocationHokkaidō, Japan
Coordinates43°01′29″N 142°06′04″E / 43.0247°N 142.101°E / 43.0247; 142.101
Construction began1954
Opening date1962
Dam and spillways
ImpoundsYūbari River
Height67.5 m
Length251.7 m
Reservoir
Total capacity87,200,000 m3
Catchment area433.0 km2
Surface area475 hectares