Nishi-Oyama Station is a railway station on the JR Ibusuki-Makurazaki Line located in Ibusuki City, Kagoshima Prefecture, Japan. The station consists of a single side platform serving one track on the ground. The station opened in 1960. It is 56.7 kilometers from the terminus of the Ibusuki-Makurazaki Line at Kagoshima Chuo Station. Nishi-Oyama Station sign says that it is the southernmost station of JR.