Tadeusz Pieronek (pronounced [ta'd?u? p??'r?n?k]; 24 October 1934 in Radziechowy, Poland – 27 December 2018 in Kraków) was a Polish Roman Catholic auxiliary bishop-emeritus, Catholic academic and professor of theology and civil law.
Pieronek was a leading member of the Stefan Batory Foundation (a George Soros Foundation branch in Poland).