Uminokuchi Station (海ノ口駅, Uminokuchi-eki) is a railway station in the city of Ōmachi, Nagano, Japan, operated by the East Japan Railway Company (JR East).

[1] Uminokuchi Station is served by the Ōito Line and is 42.9 kilometers from the terminus of the line at Matsumoto Station.

[1] The station consists of one ground-level side platform serving a single bi-directional track.

The platform is short, and can only accommodate three carriage trains.

[1] With the privatization of Japanese National Railways (JNR) on 1 April 1987, the station came under the control of JR East.