Japan Socialist Party (disambiguation)

The Japan Socialist Party (日本社会党) was a major Japanese political party that existed from 1945 to 1996.

Japan Socialist Party may also refer to:

Current political parties

 * New Socialist Party of Japan (新社会党), a political party established in 1996

Historical political parties

 * Leftist Socialist Party of Japan (左派社会党), a political party that existed from 1948 to 1955 after a split in the Japan Socialist Party
 * Rightist Socialist Party of Japan (右派社会党), a political party that existed from 1948 to 1955 after a split in the Japan Socialist Party
 * Democratic Socialist Party (Japan), either (民主社会党) or (民社党), a political party that existed from 1960 to 1994
 * Japan Socialist Party (1906) (日本社会党), a political party that existed from 1906 to 1907
 * Japan Labour-Farmer Party (日本労農党), a political party that existed from 1926 to 1928
 * Labour-Farmer Party (労働農民党) a political party that existed from 1926 to 1928
 * Socialist Masses Party (社会大衆党), a political party that existed from 1932 to 1940
 * Japan Proletarian Party (日本無産党), a political party that existed for nine months in 1937