Oyamada Station (小山田駅, Oyamada-eki) is a railway station in the city of Hanamaki, Iwate, Japan, operated by East Japan Railway Company (JR East).

Oyamada Station opened on 25 October 1913 as the Kōda Stop (幸田停留場, Kōda Teiryūjō) on the Iwate Light Railway (岩手軽便鉄道), a 762 mm (2 ft 6 in) light railway extending 65.4 km from Hanamaki to the now-defunct Sennintōge Station (仙人峠駅).

[2] The Iwate Light Railway was nationalized on 1 August 1936, becoming the Kamaishi Line.

[2] The station was absorbed into the JR East network upon the privatization of the Japanese National Railways (JNR) on 1 April 1987.

[2] The station building is scheduled to be rebuilt and replaced with a new single-storey wooden structure between December 2017 and February 2018.