Ōigawa or Oigawa ( or 大堰川, "Ōi River") is a Japanese family name and a toponym. It may refer to: * Kazuhiko Ōigawa, a Japanese politician and the current governor of Ibaraki Prefecture *

Ōigawa, Shizuoka was a town located in Shida District, Shizuoka Prefecture, Japan. On November 1, 2008, Ōigawa was merged into the expanded city of Yaizu and thus no longer exists as an independent municipality. Population As of 2008, the town had an estim ...

, a former town in Shizuoka Prefecture, Japan * Ōigawa Railway, a railway company in Shizuoka Prefecture, Japan ** Ōigawa Main Line, a Japanese railway line which connects Kanaya Station in Shimada with Senzu Station in Kawanehon (both in Shizuoka Prefecture) * Ōi River (in Japanese: Ōi-gawa), a river in Shizuoka Prefecture, Japan ** Ōigawa Dam, a dam on the Ōi River

See also