Adam Schaff (10 March 1913 – 12 November 2006) was a Polish Marxist philosopher.

Of Jewish origin, Schaff was born in Lemberg (Lwow, Lviv) into a lawyer's family.

[1] Schaff studied economics at the Ecole des Sciences Politiques et Economiques in Paris, and philosophy in Poland, specializing in epistemology.

He was considered the official ideologue of the Polish United Workers' Party, especially during its Stalinist period.

He was a member of the Polish Academy of Sciences and of the Club of Rome.