List of Famous people with last name Piacenza

Mauro Piacenza JCD is an Italian prelate of the Catholic Church. A cardinal since 2010, he has served as Penitentiary Major of the Apostolic Penitentiary since his appointment by Pope Francis on 21 September 2013. He was Prefect of the Congregation for the Clergy from 7 October 2010 to 21 September 2013. where he had been Secretary since 2007. At that Congregation, Pope Benedict XVI, according to one report, valued "his efficiency and in-depth knowledge of how the Congregation worked and its problems" and "his traditionalist ecclesiastical line of thought".

Saint Sabinus of Piacenza, venerated as a saint in the Roman Catholic church, was bishop of Piacenza until his death in the year 420.

Ardoino da Piacenza was an Italian cardinal. His first name is listed also as Arduino.

Saint Antoninus of Piacenza is a patron saint of Piacenza in Italy. He is venerated as a saint and martyr in the Roman Catholic Church, with a feast day of 30 September.