Chronology of Catholic Dioceses:Thailand
See a list of abbreviations used in this list. See also our listing of current ecclesial jurisdictions.
Regarding Rajaburi:
- 1841
- Western Siam (AV detached from Siam AV) - (Siam, Straits Settlement, Malacca) Thailand, Malaysia, Singapore
- 1841
- Malay Peninsula (AV, new name, previously Western Siam AV) - (Siam, Straits Settlement, Malacca) Thailand, Malaysia, Singapore
- 18??
- Malacca-Singapore (AV new name, previously Malay Peninsula AV) - (Siam, Straits Settlement, Malacca) Thailand, Malaysia, Singapore
- 1888
- Malacca (D, and new name, previously Malacca-Singapore AV) - (Malacca, Straits Settlement) Malaysia, Singapore
- 1662
- Siam (AV, established by the "Propaganda Fide" in Roma; missionaries sent from Cochin China and from Tonking) - (Siam) Thailand
- 1841
- Eastern Siam (AV, new name, previously Siam AV) - (Siam) Thailand
- 1899
- Laos (AV, detached from Eastern Siam AV) - Thailand, Laos
- 1924
- Bang Kok / Bangkok (AV, new name, previously Eastern Siam AV) - (Siam) Thailand
- 1930
- Rajaburi (Mission "sui iuris", detached from Bangkok, and from Malacca) - (Siam) Thailand
- 1934
- Rajaburi (AP) - (Siam) Thailand
- 1944
- Chantaburi (AV, detached from Bangkok) - Thailand
- 1950
- Thare (AV, new name, previously Laos AV) - Thailand
- 1953
- Ubon (AV, detached from Thare) - Thailand
- 1953
- Udonthani (AP, detached from Thare) - Thailand
- 1959
- Chieng-Mai (AP, detached from Bangkok) - Thailand
- 1960
- Thare and Nonseng (AV, and new name, previously Thare) - Thailand
- 1965
- Bangnokhuek (D, and new name, previously Rajaburi AV) - Thailand
- 1965
- Chantaburi - Thailand
- 1965
- Chieng-Mai - Thailand
- 1965
- Nakhorn-Rajasima (AV 22/3, detached from Ubon) - Thailand
- 1965
- Nakhorn-Rajasima (D 18/12, erected earlier same year as AV) - Thailand
- 1965
- Thare and Nonseng (Metr.) - Thailand
- 1965
- Ubon - Thailand
- 1965
- Udonthani - Thailand
- 1965
- Bangkok (Metr.) - Thailand
- 1966
- Ratburi (new name, previously Bangnokhuek) - Thailand
- 1967
- Nakhorn-Sawan (detached from Bangkok) - Thailand
- 1969
- Chanthaburi (new name, previously Chantaburi) - Thailand
- 1969
- Chiang Mai (new name, previously Chieng-Mai) - Thailand
- 1969
- Nakhon Ratchasima (new name, previously Nakhorn-Rajasima) - Thailand
- 1969
- Nakhon Sawan (new name, previously Nakhorn-Sawan) - Thailand
- 1969
- Ratchaburi (new name, previously Ratburi) - Thailand
- 1969
- Ubon Ratchatani (new name, previously Ubon) - Thailand
- 1969
- Udon Thani (new name, previously Udonthani) - Thailand
- 1969
- Surat Thani (detached from Ratchaburi) - Thailand
- 2018
- Chiang Rai (detached from Chiang Mai) - Thailand