Shimoisaka Station (下井阪駅, Shimoisaka-eki) is a passenger railway station in located in the city of Kinokawa, Wakayama Prefecture, Japan, operated by West Japan Railway Company (JR West).

Shimoisaka Station is served by the Wakayama Line, and is located 72.0 kilometers from the terminus of the line at Ōji Station.

The station consists of one side platform serving a single bi-directional track. There is no station building, but only a weather shelter on the platform. The station is unattended.

«		Service	»
Wakayama Line
Rapid Service: Does not stop at this station
Uchita		Local		Iwade

Shimoisaka Station opened on July 15, 1938. With the privatization of the Japan National Railways (JNR) on April 1, 1987, the station came under the aegis of the West Japan Railway Company.

In fiscal 2019, the station was used by an average of 433 passengers daily (boarding passengers only).

• Kinki University Wakayama Campus (Faculty of Biophysical Engineering)
• Kii Kokubun-ji ruins

• List of railway stations in Japan

Media related to Shimoisaka Station at Wikimedia Commons

• Shimoisaka Station Official Site