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Obadiah, Prophet

Obdulia, Virgin
Octavian, Martyr, Archdeacon
Octavius, Martyr
Oda, Princess, Wife of the Duke of Aquitaine in
France
Odilo, Ascetic
Odilo, Ascetic, Abbot of Stavelot-Malmédy in
Belgium
Odo, Bishop of Beauvais
Odo, Abbot of Cluny

Odo, Abbot of Massay in France
Oda (Odo), Archbishop of Canterbury

Odran, Martyr, Ireland

Odrian, Bishop of Waterford in Ireland

Odulphus, Ascetic
Oduvald, Abbot of Melrose in Scotland

Offa, King of Essex in England

Olav (Olaf, Tola), King of Norway

Olav, Martyr, King of Sweden
Olbian, Hieromartyr
Olbian, Ascetic
Olda, Prophetess
Oleg, Prince of Briansk

Olga, Equal to the Apostles, Queen of
Russia

Oliva, Martyr
Oliva, Ascetic
Oliva (Olivia, Olive), Virgin Martyr
Oliver (Oliverius, Liberius), Ascetic
Olympas, Apostle

Olympiades, Martyr
Olympias, Ascetic, Deaconess of
Constantinople

Olympiodora, Martyr
Olympius, Martyr
Olympius, District Officer
Omer (Audomarus), Bishop of Thérouanne, France
Oncho (Onchuo), Ireland

Onesimus, Apostle

Onesimus, Bishop of Ephesus
Onesimus, Martyr
Onesimus, Martyr
Onesimus, Ascetic, Wonderworker
Onesimus, Bishop of Soissons in France
Onesiphorus, Apostle

Onesiphorus, Ascetic of Anarita, Paphos,
Cyprus

Onesiphorus, Martyr

Onuphrius, Ascetic, The Egyptian

Onuphrius, Ascetic Martyr, of Chio, 1818

Onuphrius, Ascetic, Russian
Onuphrius of the David Gareji Monastery,
Georgia

Opportuna, Abbess of convent of Monteuil
Optatian, Bishop of Brescia in Italy
Optatus, Bishop of Milevis in Numidia in North
Africa
Optatus, Bishop of Auxerre in France
Or, Ascetic

Orentius, Martyr
Orentius, Father of St Laurence the Martyr
Orentius (or Orientius), Bishop of Auch

Orestes, Martyr

Orestes, Martyr

Orestes, Martyr
Orestes, Martyr, of Cyprus

Oropsis, Martyr
Oriculus, Martyr
Ormond (Armand), Abbot of Saint Mairé in France
Oronus, Martyr
Osburgh (Osburga), Abbess of convent in Coventry

Osius, Bishop of Cordova

Osmanna (Osanna), Ascetic
Osmanna (Argariarga), Ascetic
Ostianus, Viviers in France
Oswald, Archbishop of York

Oswald, King of Northumbria in England

Oswin, King of Deira, Northumbria

Osyth (Osith), Wife of Sighere, King of the East
Saxons

Otar, Martyr of St. David Gareji Monastery,
Georgia

Othmar (Otmar, Audemar), Abbot of St Gall in
Switzerland
Ortisius, Ascetic
Otteran (Odhran), Abbot of Meath in Ireland

Ottilia (Otilia, Othilia), Ascetic
Oudaceus (Eddogwy), Bishop near Llandaff, Wales

Ouen (Audöenus, Aldwin, Owen, Dado), Bishop of
Rouen
Owen (Owin), Bishop of Mercia

Ozias, King

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15
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7
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20
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2
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