Saint Julius
Saint Julius is the name of:
- Pope Julius I (died 352), pope from February 6, 337 to April 12, 352
 - See Julius and Aaron (died 304) for Julius, British martyr
 - Saint Julius the Veteran, Nicene saint and martyr
 - Saint Julius of Novara (330–401), after whom the Saint Julius Island is named
 - Saint Julius Island, an island in northern Italy