Adelphius or Adelfius may refer to:
- Adelphius of Onuphis [it] (4th century), Egyptian bishop
- Clodius Celsinus Adelphius (fl. 333–351), Roman politician
- Adelfius, a bishop from Britain noted as attending the 314 Council of Arles
- Adelfius I (bishop of Limoges) (b. c. 390), grandfather of St Ruricius
- Adelphius of Poitiers (fl. 533), bishop
- Adelfius II (bishop of Limoges) (fl. 4th century)
- Adelfius III (bishop of Limoges) (fl. late 7th century)
See also
- Adelphus, bishop of Metz
- Adelfer
- Adelfia
- Adelfo
- Adelpha
- Adelphi (disambiguation)
- Adelphia (disambiguation)
This disambiguation page lists articles associated with the title Adelphius.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: