| City | Churches |
| Amphoe Bang Khonthi, Samut Songkhram |  Nativity of Our Lady Cathedral 
|
| Bangkok, Krung Thep Maha Nakhon Bangkok | Cathedral of the Assumption of the Blessed Virgin Mary
|
| Chanthaburi, Chanthaburi | Cathedral of the Immaculate Conception
|
| Chiang Mai, Chiang Mai | Sacred Heart Cathedral
|
| Chiang Rai, Chiang Rai | Cathedral of the Nativity of Our Lady
|
| Mueang Nakhon Phanom, Nakhon Pathom |  St Anne’s Co-Cathedral
|
| Nakhon Ratchasima, Nakhon Ratchasima | Our Lady of Lourdes Cathedral
|
| Nakhon Sawan, Nakhon Sawan | St. Anna Cathedral
|
| Surat Thani, Surat Thani | St. Raphael Cathedral
|
| Tha Rae, Sakon Nakhon | St. Michael the Archangel Cathedral
|
| Ubon Ratchathani, Ubon Ratchathani | Cathedral of the Immaculate Conception
|
| Udon Thani, Udon Thani | Cathedral of Our Mother of Perpetual Help
|
