Protacio Guevarra Gunyon (June 19, 1925 – April 26, 2014) was a Roman Catholic bishop.
Ordained to the priesthood in 1952, Gungon was named auxiliary bishop of the Roman Catholic Archdiocese of Manila, Philippine and titular bishop of Obba in 1977. In 1983, he was named bishop of the Roman Catholic Diocese of Antipolo and retired in 2001.