Frederick Oakeley

 O Antiphons

 Oates's Plot

 Oaths

 English Post-Reformation Oaths

 Archdiocese of Oaxaca

 Monastery of Obazine

 Obba

 Obedience

 Religious Obedience

 Obedientiaries

 Oblate Sisters of Providence

 Oblates of Mary Immaculate

 Oblates of Saint Francis de Sales

 Oblati

 Obligation

 Tighernach O'Braein

 Obregonians

 Obreption

 Terence Albert O'Brien

 David O'Bruadair

 Edmund Bailey O'Callaghan

 Torlogh O'Carolan

 Occasionalism

 Occasions of Sin

 Thomas Occleve

 Occult Art, Occultism

 Occurrence

 Vicariate Apostolic of Central Oceania

 Daniel O'Connell

 Charles O'Conor (1)

 Charles O'Conor (2)

 Octavarium Romanum

 Octave

 Gelasius O'Cullenan

 Eugene O'Curry

 Daniel O'Daly

 Donogh Mór O'Daly

 Carlo Odescalchi

 O Deus Ego Amo Te

 Cornelius O'Devany

 St. Odilia

 St. Odilo

 John Mary Odin

 Walter Odington

 St. Odo

 St. Odo (Oda)

 Odo

 Edmund O'Donnell

 John O'Donovan

 Bl. Odo of Cambrai

 Odo of Canterbury

 Odo of Cheriton

 Odo of Glanfeuil

 John O'Dugan

 Joseph O'Dwyer

 Johann Œcolampadius

 Episcopal œconomus

 Œcumenius

 John James Maximilian Oertel

 Oettingen

 Offa

 Offerings

 Offertory

 Divine Office

 Office of the Dead

 Maurice O'Fihely

 O Filii et Filiæ

 Diocese of Ogdensburg

 Marco D'Oggione

 Ven. John Ogilvie

 Diocese of Ogliastra

 Eugene O'Growney

 John O'Hagan

 Thomas O'Hagan

 John O'Hanlon

 Theodore O'Hara

 Patrick O'Hely

 Thomas O'Herlahy

 Ambrose Bernard O'Higgins

 Ohio

 Aloys Karl Ohler

 Dermod O'Hurley

 Maelbrighte O'Hussey

 Oil of Saints

 Ointment in Scripture

 Alonso de Ojeda

 Jean d'Okeghem

 Oklahoma

 St. Olaf Haraldson

 Nicolaus Oláh

 Olba

 Old Catholics

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 Ven. Edward Oldcorne

 Oldenburg

 Old Hall (St. Edmund's College)

 Hugh Oldham

 Augustino Oldoini

 Arthur O'Leary

 Olenus

 Zbigniew Olesnicki

 Jean-Jacques Olier

 Diocese of Olinda

 Oliva

 Gian Paolo Oliva

 Pierre Olivaint

 George Oliver

 Mount Olivet

 Olivetans

 Pierre Jean Olivi

 Olivier de la Marche

 Léon Ollé-Laprune

 Archdiocese of Olmütz

 Michael O'Loghlen

 St. Olympias

 Olympus

 Diocese of Omaha

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 Kathleen O'Meara

 St. Omer

 Omission

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 Hugh O'Neill

 Owen Roe O'Neill

 Onias

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 Shrine of Oostacker

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 Gilles-Marie Oppenordt

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 St. Optatus

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 Malachias O'Queely

 Oracle

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 Orans

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 Nicolas d'Orbellis

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 Oregon

 Archdiocese of Oregon City

 Bernard O'Reilly

 Edmund O'Reilly (1)

 Edmund O'Reilly (2)

 Hugh O'Reilly

 John Boyle O'Reilly

 Myles William Patrick O'Reilly

 Oremus

 Diocese of Orense

 Nicole Oresme

 Organ

 Diocese of Oria

 Barnaba Oriani

 Oriental Study and Research

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 Orientius

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 Diocese of Orihuela

 St. Joseph Oriol

 Diocese of Oristano

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 Niccolò Orlandini

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 Barent Van Orley

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 Patrick Henry O'Rorke

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 Giuseppe Agostino Orsi

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 Abraham Ortelius

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 Matthieu Ory

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 Osbald

 Ven. Edward Osbaldeston

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 St. Osmund

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 Ostiensis

 Ostracine

 Christian Ostraka

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 Philip O'Sullivan Beare

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 St. Oswin

 Otfried of Weissenburg

 Othlo

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 Marcus Salvius Otho

 Archdiocese of Otranto

 Archdiocese of Ottawa

 University of Ottawa

 St. Otto

 Otto I, the Great

 Otto II

 Otto III

 Otto IV

 Ottobeuren

 Otto of Freising

 Otto of Passau

 Otto of St. Blasien

 St. Ouen

 Feast of Our Lady, Help of Christians

 Feast of Our Lady of Good Counsel

 Brothers of Our Lady of the Fields

 Feast of Our Lady of the Snow

 Friedrich Overbeck

 Bernhard Heinrich Overberg

 Diocese of Oviedo

 Nicholas Owen

 John Oxenford

 Henry Nutcombe Oxenham

 Oxford

 University of Oxford

 Oxford Movement (1833-1845)

 Oxyrynchus

 Antoine-Frédéric Ozanam

 Jacques Ozanam

 Ozias

Vicariate Apostolic of Central Oceania


The whole of Oceania had at first been entrusted by the Propaganda to the Society of the Sacred Hearts of Jesus and Mary (1825); but the territory proving too large, the western portion was afterwards formed into a vicariate Apostolic and given to the Society of Mary (1836), Mgr Pompallier being appointed vicar Apostolic of Western Oceania. In 1842, the Propaganda created the vicariate Apostolic of Central Oceania, comprising New Caledonia, the Tonga, Samoa, and Fiji Islands. By a further subdivision, the vicariate included only the Tonga, the Wallis Islands, Futuna, and Niué. The Tonga Islands extend from 15† to 22† S. lat. and from 173† to 176† W. long. Niué is three hundred miles to the east. The Wallis Islands lie in 13† S. lat. and 178† W. long.; Futuna, in 40† 14' S. lat. and 179† 33' W. long. These archipelagos are divided among several more or less constitutional monarchies; the Kingdoms of Tonga, Niué, Wallis, and the two Kingdoms of Futuna. Tonga and Niué are under British protectorate, Wallis and Futuna, under French. Freedom of worship is theoretically recognized everywhere except in Niué, which is exclusively Protestant. Wallis and Futuna are entirely Catholic. In Tonga there are Catholics, Methodists belonging to the Sydney conference, independent Methodists forming a national Church, some Anglicans, Adventists, and Mormons. The total population is 34,000, with 9200 Catholics. There are 35 churches; 21 European and 1 native Marist priests, and 3 native secular priests; 28 schools with 2039 children; 2 colleges; 1 seminary. The establishments for girls are under the care of 52 Sisters of the Third Order of Mary. The boys' schools are conducted by native lay teachers; the colleges and the seminary by priests. The islands are divided into districts, with resident missionaries who assemble every month for an ecclesiastical conference. There are annual retreats for the priests, for the sisters, and for the catechists, besides general retreats for the faithful about every two years. In each village there is a sodality of men (Kan Apositolo) and another of women (Fakafeao). The yearly number of baptisms averages 310; of marriages, 105. Mgr Bataillon was the first vicar Apostolic, succeeded by Mgr Lamaze, at whose death (1906) succeeded his coadjutor, Mgr Amand Olier, S.M., the present (1910) vicar Apostolic. The vicariate has given to the Church the proto-martyr of Oceania, Bl. P. Chanel.

MANGERET, Mgr Bataillon et les missions de l'Océanie Centrale (Lyons, 1884); MONFAT, Les Tonga (Lyons, 1893); HERVIER, Les Missions Maristes en Océanie (Paris, 1902); NICOLET, Le Martyr de Futuna (Boston, 1907); Proceedings of the First Australasian Catholic Congress (Sydney, 1900); SOANE MALIA, Chez les Méridionaux du Pacifique (Lyons and Paris, 1910).

JOSEPH BLANC