Kurdistan Socialist Democratic Party (Kurdish: Parti Sosyalisti Demokrati Kurdistan; Arabic: الحزب الاشتراكي الديمقراطي الكردستاني, romanized: Hizb al-Ishtiraki al-Dimuqrati al-Kurdistani) is a political party in Kurdistan Region. The first leader was Saleh Yousefi after 1981. After 1992, the party was led by Mahmoud Othman. The party is currently led by Mohammed Haji Mahmoud. It is a splinter of the Kurdistan Democratic Party. In the 2013 Kurdistan Region parliamentary election the party got 12,501 votes (0.6%) and it won one seat in the Kurdistan National Assembly.