Shimotsuke-Ōsawa Station (下野大沢駅, Shimotsuke-Ōsawa-eki) is a railway station in the city of Nikkō, Tochigi, Japan, operated by the East Japan Railway Company (JR East).

Shimotsuke-Ōsawa Station is served by the Nikkō Line, and is located 28.2 kilometers from the terminus of the line at Utsunomiya.

The station consists of two opposed side platform, connected to the station building by a footbridge. The station is unattended.

1	■ Nikkō Line	for Utsunomiya
2	■ Nikkō Line	for Imaichi and Nikkō

Shimotsuke-Ōsawa Station opened on 1 November 1929. On 1 April 1987 the station came under the control of JR East with the privatization of the Japan National Railways (JNR). A new station building was completed in 2010.

• Shimotsuke-Ōsawa Post Office

• List of railway stations in Japan

Media related to Shimotsuke-Ōsawa Station at Wikimedia Commons

• JR East Station information (in Japanese)