Socialist Democratic Federation (Japan)

Socialist Democratic Federation
PresidentHideo Den (1978 – 1985)
Satsuki Eda (1985 – 1994)
Founded26 March 1978
Dissolved22 May 1994
Split fromJapan Socialist Party
Preceded bySocialist Citizen's Federation
Shakai Club
IdeologyLiberal socialism
Pacifism
Reformism
Political positionCentre to centre-left

The Socialist Democratic Federation (社会民主連合, Shakai-minshu-rengō) (SDF), also referred to in Japanese by the shortened Shaminren (社民連), was a Japanese political party that existed from 1978 to 1994. It was formed from the merger of the Socialist Citizen's Federation (社会市民連合, Shakai-shimin-rengō) and the Shakai Club (社会クラブ, Shakai-kurabu).