Pilarz is Polish-language surname literally meaning sawyer (occupation). Notable people with this surname include:
Grzegorz Pilarz (born 1980), Polish volleyball player Józef Pilarz (1956–2008), Polish politician Krzysztof Pilarz (born 1980), Polish football goalkeeper Scott Pilarz (1959–2021), American Jesuit priest, President of Marquette University, former President of the University of Scranton
See also Pilar (surname)