Pavol Mária Hnilica, S.J. (30 March 1921 – 8 October 2006) was a Slovak prelate of the Catholic Church who served as a titular bishop of Rusadir from 1964 until his death in 2006. Born in Uňatín in present-day Slovakia, Hnilica became a Jesuit priest in 1950, and in 1951 was secretly ordained a bishop during the communist rule in Czechoslovakia. In 1951 he fled the country and settled in Rome, where in 1964 he was appointed the titular bishop of Rusadir. From Rome, he led the Pia Unione Pro Fratribus organisation, later known as Family of Mary. The organisation offered religious support to Catholics in Eastern Europe under Soviet control.