Adolf Lindenbaum (June 12, 1904 in Warsaw, Russian Empire (now Poland) – 1941 in Paneriai), was a Polish logician and mathematician. He was a student of Wacław Sierpiński, became a distinguished author of works on set theory and had served as an Assistant Professor at Warsaw University. He was killed by the Nazis in Paneriai (Ponary), near Vilnius.
Among his most famous works are the Lindenbaum's lemma and Lindenbaum-Tarski algebra.