PASOK, the Panhellenic socialist movement, is a a social-democratic political party in Greece.PASOK stands for Panellinio Sosialistiko Kinima (Greek: Πανελλήνιο Σοσιαλιστικό Κίνημα). Until 2015, it was one of two major political parties, the other was its main pllitical rival, New Democracy (Greece). in 2019, it joined forces with other similar parties, and formed Kinima Allagis.