Aleksander Kwaśniewski (; born 15 November 1954) is a Polish politician. He served as President for two terms (1995-2000 and 2000-2005). He was, before being elected first time, member of the Democratic Left Alliance, but after assumed duties he became an independent. Before 1989 he was a member of Polish United Workers Party (communist). He was preceded by Lech Wałęsa and succeeded by Lech Kaczyński.