Biwako-Hamaōtsu Station was opened on July 15, 1880 as Ōtsu Station (大津駅, Ōtsu-eki) on the Japanese Government Railways (JGR) Tōkaidō Main Line .[citation needed] The private Ōtsu Electric Railway began operations to the station in 1913, the same year that the Tōkaidō Main Line was rerouted to bypass this station and JGR operations ceased.[citation needed] The station was renamed Hamaōtsu Station (浜大津駅, Hamaōtsu-eki) on June 1, 1913.[citation needed] It was renamed again to its present name on March 17, 2018.[citation needed]