The Korean Socialist Party () was a socialist party of Korea. The party was founded in 1918 in Khabarovsk, Soviet Russia. In April 1919, the party merged with the Korean Democratic Corps () at the second representative congress of Korean Socialist Party. And in 1921, the party merged with Korean communist groups of Irkutsk and was renamed as the Korean Communist Party.
The establishment of the party was supported by the local Bolshevik authority in the Russian Far East, represented by the likes of Alexander Krasnoshchyokov and Alexandra Kim.