Roman Catholic Diocese of the Transfiguration at Novosibirsk

• Established on April 13, 1991 as Apostolic Administration of Novosibirsk, on territory split off from the Diocese of Vladivostok and the newly suppressed Metropolitan Archdiocese of Mohilev
• Renamed on May 18, 1999 as Apostolic Administration of Western Siberia, having lost territory to establish the then Apostolic Administration of Eastern Siberia (now Diocese of Saint Joseph at Irkutsk)
• Promoted and renamed-back on February 11, 2002 as Diocese of the Transfiguration at Novosibirsk

(all Roman rite, so far missionary members of Latin congregations)

Apostolic Administrators of Novosibirsk (Siberia)

• Joseph Werth, Jesuits (S.J.), (1991.04.13 – 1999.05.18 see below), Titular BishopofBulna (1991.04.13 – 2002.02.11)
• Jerzy Mazur, Divine Word Missionaries (S.V.D.) (1998.03.23 – 1999.05.18), Titular Bishop of Tabunia (1998.03.23 – 2002.02.11), later Apostolic AdministratorofEastern Siberia (Russia) (1999.05.18 – 2002.02.11), Apostolic Administrator of Yuzhno Sakhalinsk (Russia) (2000 – 2003.04.17), Bishop of Saint Joseph at Irkutsk (Russia) (2002.02.11 – 2003.04.17), Bishop of Ełk (Poland) (2003.04.17 – ...)

Apostolic Administrator of Western Siberia

• Joseph Werth, S.J. (see above 1999.05.18 – 2002.02.11 see below)

Suffragan Bishops of (Transfiguration at) Novosibirsk

• Joseph Werth, S.J. (see above 2002.02.11 - ...), President of Conference of Catholic Bishops of Russia (2005.02 – 2011.01.19)

As per 2014, it pastorally served 512,000 Catholics (2.0% of 25,600,000 total) on 2,000,000 km² in 70 parishes and 160 missions with 38 priests (19 diocesan, 19 religious), 1 deacon and 77 lay religious (20 brothers, 57 sisters).

Dependent churches include:

• Holy Trinity Church, Tobolsk
• St. Anne's Church, Yekaterinburg
• St. John Chrysostom Church, Novokuznetsk
• St. Joseph's Church, Tyumen
• Church of the Intercession of the Virgin Mary, Tomsk

• Roman Catholicism in Russia

• GCatholic.org, with Google satellite photo
• Catholic Hierarchy
• Siberian Catholic Newspaper - website of the press service of the Diocese of the Transfiguration at Novosibirsk Archived 2010-04-14 at the Wayback Machine
• Catholic Church in Western Siberia
• St. Nicholas Catholic Orphanage in Novosibirsk