The Progressive Socialist Party of Ukraine (Prohresivna Sotsjalistychna Partiya Ukrayiny/Progressivnaya Sotsialističeskaja Partiya Ukrajiny, Прогресивна соціалістична партія України) is a political party in Ukraine, created by Nataliya Vitrenko a dissident member of the Socialist Party of Ukraine in 1996. She led a group of more radical SPU members who opposed what they regarded as revisionist tendencies in the Socialist Party.