Nazarius
- Nazarius (rhetorician) - a Latin rhetorician
- Saint Nazarius (Roman Martyrology) - one of four Roman martyrs who suffered death under Diocletian
- Saint Nazarius (abbot) - the fourteenth abbot of the monastery of Lérins.
- Saint Nazarius (bishop) - the legendary first bishop of Koper, Istria
- Nazarius and Celsus - two martyrs whose bodies were discovered by Saint Ambrose
- John Paul Nazarius - a Dominican theologian