Diocese of

Udon Thani

Thailand

Continent: South and East Asia

Rite: Roman (Latin)

Type: Diocese Diocese

Name: Udon Thani / สังฆมณฑลอุดรธานี (ไทย) / 烏隆他尼 (正體中文) / Udonthanien(sis) (Latin)

Ecclesiastical Province: Thare and Nonseng

Depends on: Dicastery for Evangelisation

Website:

Celebrations

Liturgical Calendar (National) 📅

History

1953.05.07: Established as Apostolic Prefecture of Udonthani / Udonthanien(sis) (Latin) (from Apostolic Vicariate of Thare)
1965.12.18: Promoted as Diocese of Udonthani / Udonthanien(sis) (Latin) (became suffragan of Thare and Nonseng)
1969.07.02: Renamed as Diocese of Udon Thani / สังฆมณฑลอุดรธานี (ไทย) / 烏隆他尼 (正體中文) / Udonthanien(sis) (Latin)

Present Prelates

Bishop (2009.11.14 – ...):

Bishop Joseph Luechai Thatwisai (63)

Ordinaries

Bishops of Udon Thani (Roman Rite)

Bishop Joseph Luechai Thatwisai (63)
(2009.11.14 – ...)

Bishop of Udon Thani (Thailand)

Born:	1962.12.02 (Phonsung, Thailand)
Ordained Priest:	1990.05.24
Consecrated Bishop:	2010.02.06

Priest of Udon Thani (Thailand) (1990.05.24 – 2009.11.14)

Bishop of Udon Thani (Thailand) (2009.11.14 – ...)

Bishop George Yod Phimphisan, C.SS.R.
(1975.10.02 – 2009.11.14)

In fidem dilexit nos

Born:	1933.01.19 (Bangkok, Thailand)
Ordained Priest:	1958.06.24
Consecrated Bishop:	1975.12.12
Died:	2017.12.18 (Udon Thani, Thailand † 84)

Bishop of Udon Thani (Thailand) (1975.10.02 – 2009.11.14)

President of Catholic Bishops’ Conference of Thailand (1991 – 1994)

President of Catholic Bishops’ Conference of Thailand (1997 – 2000)

Apostolic Administrator of Thare and Nonseng (Thailand) (2004.05.14 – 2005.07.01)

President of Catholic Bishops’ Conference of Thailand (2006 – 2009.10)

Bishop Clarence James Duhart, C.SS.R.
(1969.07.02 – 1975.10.02)

Born:	1912.03.23 (New Orleans, LA, USA)
Ordained Priest:	1937.06.29
Consecrated Bishop:	1966.04.21
Died:	1998.09.21 († 86)

Prefect Apostolic of Udonthani (Thailand) (1953 – 1965.12.18)

Bishop of Udonthani (Thailand) (1965.12.18 – 1969.07.02)

Bishop of Udon Thani (Thailand) (1969.07.02 – 1975.10.02)

Bishops of Udonthani (Roman Rite)

Bishop Clarence James Duhart, C.SS.R.
(1965.12.18 – 1969.07.02)

(see above)

Prefects Apostolic of Udonthani (Roman Rite)

Fr. Clarence James Duhart, C.SS.R. (later Bishop)
(1953 – 1965.12.18)

(see above)

Special Churches

Cathedral: Cathedral of Our Mother of Perpetual Help, Udon Thani, Udon Thani
Jubilee Churches in the Holy Year 2025

Nakhon Sawan (↙), Vientiane (↑), Savannakhet (↗), Thare and Nonseng (→), Ubon Ratchathani (↘), Nakhon Ratchasima (↓)

Statistics (2022.12.31)

Area: 45,232 km²

Population: 18,208 Catholics (0.3% of 5,452,650 total)

Pastoral Centres: 67 parishes, 5 missions

Personnel: 63 priests (35 diocesan, 28 religious), 122 religious (32 brothers, 90 sisters), 5 seminarians

Pastoral Centres

Last updated on 2026.01.09

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