Albin Siwak (born 27 January 1933 in Wolomin, died April 2019) was a Polish politician.
He worked in the Polish People's Republic as a construction worker, and for many years as foreman; at the age of 18, he was already head of a working unit.
He later made a career as a Polish United Workers' Party (Communist Party) functionary, being member of the Politburo in 1980s and serving as Counselor at the Polish Embassy in Libya.
Siwak was a leader of the hardline fraction and a determined opponent of Solidarity.
After 1989 he belonged for some time to the postcommunist Democratic Left Alliance.Siwak later joined the devoutly Catholic National Party "Ojczyzna".Critics have accused him of anti-Jewish sentiment; in Leszek Koczanowicz's view, Siwak portrays Polish communism as an expression of national interests.
He was connected with the newspaper Tygodnik Ojczyzna and represented nationalist-clerical positions.