Pelagius (disambiguation)
Pelagius was a British monk whose theology is known as Pelagianism.
Pelagius may also refer to:
- Pelagius of Constance, Pannonian child martyr
- Pope Pelagius I, reigned 556–561
- Pope Pelagius II, reigned 579–590
- Pelagius of Asturias, first king of Asturias
- Pelagius the Hermit, Spanish hermit
- Pelagius of Cordova, Galician Christian child-martyr
- Pelagius
- Pelagius of Oviedo, Spanish bishop of Oviedo
- Pelagius Galvani, or Pelagio Galvani, Spanish cardinal
- Alvarus Pelagius, Galician canonist