The Oga Line (男鹿線, Oga-sen) is a railway line in Japan operated by East Japan Railway Company (JR East).

[1] A freight-only branch from Funakawa to Funakawaminato was opened on 10 June 1937.

[1] With the privatization of Japanese National Railways (JNR) on 1 April 1987, the line came under the control of JR East.

[1] In spring 2017, a new EV-E801 series battery electric multiple unit train was introduced on the Oga Line service from Akita.

[2] So far, there is only one battery electric trainset operated on this line, but in December 2019 JR East announced the plan to introduce additional such trainsets on this route after the fiscal year 2020, completely replacing KiHa 40 and 48 diesel multiple units.