Onjuku Station (御宿駅, Onjuku-eki) is a passenger railway station located in the town of Onjuku, Chiba Prefecture Japan, operated by the East Japan Railway Company (JR East).

Onjuku Station is served by the Sotobō Line, and lies 65.4 km (40.6 mi) from the starting point of the line at Chiba Station.

Onjuku Station has a single island platform connected to a white-washed station building by a footbridge. The station has a Midori no Madoguchi staffed ticket office.

1	■ Sotobō Line	Katsuura, Awa-Kamogawa
2	■ Sotobō Line	For Kazusa-Ichinomiya, Mobara, Soga, Chiba

Onjuku Station was opened on 20 March 1913. It was absorbed into the JR East network upon the privatization of the Japan National Railways (JNR) on 1 April 1987.

In fiscal 2019, the station was used by an average of 522 passengers daily (boarding passengers only).

• National Route 128

• List of railway stations in Japan

Media related to Onjuku Station at Wikimedia Commons

• JR East Station information (in Japanese)