Ōniwa Station (大庭駅, Ōniwa-eki) is a railway station in the city of Matsumoto, Nagano, Japan, operated by the private railway operating company Alpico Kōtsū.

Ōniwa Station is a station on the Kamikōchi Line and is 2.6 kilometers from the terminus of the line at Matsumoto Station.

The station has one ground-level side platform serving a single bi-directional track.

The station opened on 2 October 1921.

In fiscal 2016, the station was used by an average of 159 passengers daily (boarding passengers only).