Jan Stefan Pietrzak (pronounced [ˈjan ˈpʲɛtʃak]; born 26 April 1937) is a Polish comedian, politician, singer-songwriter, actor, and columnist for Tygodnik Solidarność (Solidarity Weekly). He was born in Warsaw. In 1967 Pietrzak founded Pod Egidą ("Under the Aegis"), a literacy school. He starred in the comedy series Czterdziestolatek from 1974 to 1977.
- "Prezydent wręczył nominacje generalskie i odznaczenia państwowe" (in Polish). prezydent.pl. 3 May 2009. Archived from the original on 25 September 2013.
- "Prawda w żartach zawarta" ("The Truth as Humor"). Interview with Jan Pietrzak by Patrycja Gruszyńska-Ruman. PDF direct download. Bulletin of the Institute of National Remembrance, no. 7 (90), July 2008; ISSN 1641-9561. Retrieved June 14, 2012. (in Polish)