| Date | Country | Change |
| 1929 | Titular Episcopal See of Aulona was renamed as Titular Episcopal See of Aulon | |
| 1929 | Titular Episcopal See of Macri was renamed as Titular Episcopal See of Macri | |
| 1929 | Titular Episcopal See of Pomarium was renamed as Titular Episcopal See of Pomaria | |
| 1929 | Titular Episcopal See of Rusaddir was renamed as Titular Episcopal See of Rusadus | |
| 1929 | Titular Episcopal See of Tadama was renamed as Titular Episcopal See of Tadamata | |
| 1929 | Titular Episcopal See of Thagura was renamed as Titular Episcopal See of Thagora | |
| 1929 | Titular Episcopal See of Vatarba was established | |
| 1929 | Titular Archiepiscopal See of Beroë was established | |
| 1929 | Titular Metropolitan See of Sardica was renamed as Titular Metropolitan See of Serdica | |
| 1929 | Titular Episcopal See of Paphos was renamed as Titular Episcopal See of Paphus | |
| 1929 | Titular Episcopal See of Tamasus was renamed as Titular Episcopal See of Tamasus | |
| 1929 | Titular Metropolitan See of Antinoupolis was renamed as Titular Metropolitan See of Antinoë | |
| 1929 | Titular Episcopal See of Casium was renamed as Titular Episcopal See of Casius | |
| 1929 | Titular Episcopal See of Hermopolis Magna was renamed as Titular Episcopal See of Hermopolis maior | |
| 1929 | Titular Episcopal See of Hermopolis Parva was renamed as Titular Episcopal See of Hermopolis parva | |
| 1929 | Titular Metropolitan See of Leontopolis was renamed as Titular Metropolitan See of Leontopolis | |
| 1929 | Titular Episcopal See of Nitria was renamed as Titular Episcopal See of Nitrium | |
| 1929 | Titular Episcopal See of Ombus was renamed as Titular Episcopal See of Ombi | |
| 1929 | Titular Episcopal See of Rhinocorura was renamed as Titular Episcopal See of Rhinocorura | |
| 1929 | Titular Episcopal See of Sele was renamed as Titular Episcopal See of Sela | |
| 1929 | Titular Episcopal See of Tentyris was renamed as Titular Episcopal See of Tentyris | |
| 1929 | Titular Episcopal See of Axomis was renamed as Titular Episcopal See of Axomis | |
| 1929 | Titular Archiepiscopal See of Soteropolis was established | |
| 1929 | Diocese of Paderborn lost territory to Diocese of Fulda | |
| 1929 | Titular Episcopal See of Carpathus was promoted as Titular Archiepiscopal See of Carpathus | |
| 1929 | Titular Episcopal See of Cassandria was renamed as Titular Episcopal See of Cassandria | |
| 1929 | Titular Archiepiscopal See of Cypsela was established | |
| 1929 | Titular Episcopal See of Hierisus was renamed as Titular Episcopal See of Hierissus | |
| 1929 | Titular Episcopal See of Lacedæmon was renamed as Titular Episcopal See of Lacedæmonia | |
| 1929 | Titular Episcopal See of Lampa was renamed as Titular Episcopal See of Lampa | |
| 1929 | Titular Archiepiscopal See of Lemnus was established | |
| 1929 | Titular Archiepiscopal See of Leucas was established | |
| 1929 | Titular Episcopal See of Macra was renamed as Titular Episcopal See of Macra | |
| 1929 | Titular Episcopal See of Maronea was promoted as Titular Archiepiscopal See of Maronea | |
| 1929 | Titular Episcopal See of Methymna was promoted as Titular Archiepiscopal See of Methymna | |
| 1929 | Titular Episcopal See of Milopotamus was renamed as Titular Episcopal See of Milopotamus | |
| 1929 | Titular Episcopal See of Mytilene was promoted as Titular Metropolitan See of Mitylene | |
| 1929 | Titular Episcopal See of Platæa was renamed as Titular Episcopal See of Platæa | |
| 1929 | Titular Episcopal See of Polystilium was renamed as Titular Episcopal See of Polystylus | |
| 1929 | Titular Archiepiscopal See of Rhusium was established | |
| 1929 | Titular Archiepiscopal See of Sirrhæ was renamed as Titular Archiepiscopal See of Serræ | |
| 1929 | Titular Archiepiscopal See of Stobi was demoted as Titular Episcopal See of Stobi | |
| 1929 | Titular Episcopal See of Thermopylæ was renamed as Titular Episcopal See of Thermopylæ | |
| 1929 | Titular Episcopal See of Thespia was renamed as Titular Episcopal See of Thespiæ | |
| 1929 | Titular Metropolitan See of Traianopolis in Rhodope (Armenian Rite) was suppressed | |
| 1929 | Titular Metropolitan See of Traianopolis was renamed as Titular Metropolitan See of Trajanopolis | |
| 1929 | Titular Archiepiscopal See of Ægina was established | |
| 1929 | Titular Episcopal See of Ænus was promoted as Titular Archiepiscopal See of Ænus | |
| 1929 | Titular Episcopal See of Hólar was restored | |
| 1929 | Titular Episcopal See of Hippus was renamed as Titular Episcopal See of Hippos | |
| 1929 | Titular Episcopal See of Porphyrium was renamed as Titular Episcopal See of Porphyreon | |
| 1929 | Titular Episcopal See of Esbus was renamed as Titular Episcopal See of Esbus | |
| 1929 | Titular Episcopal See of Aila was renamed as Titular Episcopal See of Æla | |
| 1929 | Titular Episcopal See of Orthosia was renamed as Titular Episcopal See of Orthosias | |
| 1929 | Titular Episcopal See of Darnis was promoted as Titular Metropolitan See of Darnis | |
| 1929 | Titular Episcopal See of Leptis Maior was renamed as Titular Episcopal See of Leptis magna | |
| 1929 | Titular Episcopal See of Œa was renamed as Titular Episcopal See of Oëa | |
| 1929 | Titular Episcopal See of Sabratha was renamed as Titular Episcopal See of Sabrata | |
| 1929 | Titular Episcopal See of Bitylius was established | |
| 1929 | Titular Episcopal See of Jericho was renamed as Titular Episcopal See of Jerichus | |
| 1929 | Titular Metropolitan See of Nazareth was restored | |
| 1929 | Titular Episcopal See of Constantia was promoted as Titular Archiepiscopal See of Constantia | |
| 1929 | Titular Episcopal See of Matriga was renamed as Titular Episcopal See of Matrega | |
| 1929 | Titular Archiepiscopal See of Nicopsis was established | |
| 1929 | Titular Episcopal See of Tana was renamed as Titular Episcopal See of Tanais | |
| 1929 | Titular Episcopal See of Abyla was renamed as Titular Episcopal See of Abila | |
| 1929 | Titular Episcopal See of Adraha was renamed as Titular Episcopal See of Adraa | |
| 1929 | Titular Episcopal See of Amatha was renamed as Titular Episcopal See of Amathus | |
| 1929 | Titular Episcopal See of Amatha (Maronite Rite) was renamed as Titular Episcopal See of Amathus | |
| 1929 | Titular Archiepiscopal See of Anasartha was established | |
| 1929 | Titular Archiepiscopal See of Berœa was restored | |
| 1929 | Titular Episcopal See of Cæsarea was renamed as Titular Episcopal See of Cæsarea | |
| 1929 | Titular Episcopal See of Euhara was renamed as Titular Episcopal See of Euaria | |
| 1929 | Titular Archiepiscopal See of Gabula was established | |
| 1929 | Titular Episcopal See of Hemesa was promoted as Titular Archiepiscopal See of Hemesa | |
| 1929 | Titular Archiepiscopal See of Laodicea ad mare was renamed as Titular Archiepiscopal See of Laodicea | |
| 1929 | Titular Archiepiscopal See of Laodicea ad mare (Maronite Rite) was renamed as Titular Archiepiscopal See of Laodicea | |
| 1929 | Titular Episcopal See of Laodicea ad mare (Greek-Melkite Rite) was renamed as Titular Episcopal See of Laodicea | |
| 1929 | Titular Episcopal See of Paltus was promoted as Titular Archiepiscopal See of Paltus | |
| 1929 | Titular Episcopal See of Resaina was renamed as Titular Episcopal See of Rhesaina | |
| 1929 | Titular Episcopal See of Abbir was renamed as Titular Episcopal See of Abbirmajus | |
| 1929 | Titular Episcopal See of Aga was renamed as Titular Episcopal See of Aga | |
| 1929 | Titular Archiepiscopal See of Caria was renamed as Titular Archiepiscopal See of Caria | |
| 1929 | Titular Episcopal See of Furni Majus was renamed as Titular Episcopal See of Furnos major | |
| 1929 | Titular Episcopal See of Matera was renamed as Titular Episcopal See of Matara | |
| 1929 | Titular Episcopal See of Maxula was renamed as Titular Episcopal See of Maxula Prates | |
| 1929 | Titular Episcopal See of Scilium was renamed as Titular Episcopal See of Scilium | |
| 1929 | Titular Episcopal See of Thabbora was renamed as Titular Episcopal See of Tabbora | |
| 1929 | Titular Episcopal See of Thacia Montana was renamed as Titular Episcopal See of Tacia Montana | |
| 1929 | Titular Episcopal See of Thænæ was renamed as Titular Episcopal See of Thenæ | |
| 1929 | Titular Episcopal See of Zama was renamed as Titular Episcopal See of Zama maior | |
| 1929 | Titular Episcopal See of Argiza was renamed as Titular Episcopal See of Algiza | |
| 1929 | Titular Episcopal See of Amorium was promoted as Titular Metropolitan See of Amorium | |
| 1929 | Titular Episcopal See of Attalia was renamed as Titular Episcopal See of Attalea | |
| 1929 | Titular Episcopal See of Bahtna (Syriac Rite) was renamed as Titular Episcopal See of Bahtnæ | |
| 1929 | Titular Archiepiscopal See of Brysis was established | |
| 1929 | Titular Episcopal See of Camachus was promoted as Titular Metropolitan See of Camachus | |
| 1929 | Titular Episcopal See of Charriæ was renamed as Titular Episcopal See of Carrhæ | |
| 1929 | Titular Episcopal See of Chariupulis was renamed as Titular Episcopal See of Chariopolis | |
| 1929 | Titular Episcopal See of Citharizum was renamed as Titular Episcopal See of Citharizum | |
| 1929 | Titular Episcopal See of Colonia was promoted as Titular Archiepiscopal See of Colonia | |
| 1929 | Titular Episcopal See of Comana Cappadociæ was renamed as Titular Episcopal See of Comana Armeniæ | |
| 1929 | Titular Episcopal See of Comana Pontica was renamed as Titular Episcopal See of Comana pontica | |
| 1929 | Titular Episcopal See of Croydala was renamed as Titular Episcopal See of Corydala | |
| 1929 | Titular Archiepiscopal See of Cotrada was established | |
| 1929 | Titular Episcopal See of Cotyæum was promoted as Titular Metropolitan See of Cotyæum | |
| 1929 | Titular Episcopal See of Danium was renamed as Titular Episcopal See of Daonium | |
| 1929 | Titular Episcopal See of Dercos was promoted as Titular Archiepiscopal See of Dercos | |
| 1929 | Titular Episcopal See of Dometiupolis was renamed as Titular Episcopal See of Dometiopolis | |
| 1929 | Titular Episcopal See of Druzipara was renamed as Titular Episcopal See of Drizipara | |
| 1929 | Titular Episcopal See of Eucaita was promoted as Titular Archiepiscopal See of Euchaitæ | |
| 1929 | Titular Archiepiscopal See of Garella was established | |
| 1929 | Titular Episcopal See of Germa was renamed as Titular Episcopal See of Germa | |
| 1929 | Titular Episcopal See of Himeria was renamed as Titular Episcopal See of Hemeria | |
| 1929 | Titular Episcopal See of Hipæpa was renamed as Titular Episcopal See of Hypæpa | |
| 1929 | Titular Episcopal See of Iustinianopolis was renamed as Titular Episcopal See of Iustinianopolis | |
| 1929 | Titular Episcopal See of Iasus was renamed as Titular Episcopal See of Jasus | |
| 1929 | Titular Episcopal See of Ionopolis was renamed as Titular Episcopal See of Jonopolis | |
| 1929 | Titular Episcopal See of Leuce was renamed as Titular Episcopal See of Leuce | |
| 1929 | Titular Episcopal See of Lyrba was renamed as Titular Episcopal See of Lyrbe | |
| 1929 | Titular Episcopal See of Martyropolis (Syriac Rite) was suppressed | |
| 1929 | Titular Episcopal See of Miletus was promoted as Titular Archiepiscopal See of Miletus | |
| 1929 | Titular Episcopal See of Nacolia was promoted as Titular Archiepiscopal See of Nacolia | |
| 1929 | Titular Episcopal See of Petinissus was renamed as Titular Episcopal See of Petinessus | |
| 1929 | Titular Episcopal See of Pednelissus was renamed as Titular Episcopal See of Petnelissus | |
| 1929 | Titular Episcopal See of Phoba was renamed as Titular Episcopal See of Phoba | |
| 1929 | Titular Episcopal See of Phoba (Syriac Rite) was suppressed | |
| 1929 | Titular Episcopal See of Proconnesus was promoted as Titular Archiepiscopal See of Proconnesus | |
| 1929 | Titular Episcopal See of Rhizæum was promoted as Titular Archiepiscopal See of Rhizæum | |
| 1929 | Titular Episcopal See of Samosata was promoted as Titular Archiepiscopal See of Samosata | |
| 1929 | Titular Episcopal See of Savatra was renamed as Titular Episcopal See of Sauatra | |
| 1929 | Titular Episcopal See of Seleucia pieria was promoted as Titular Archiepiscopal See of Seleucia pieria | |
| 1929 | Titular Episcopal See of Selge was promoted as Titular Archiepiscopal See of Selge | |
| 1929 | Titular Episcopal See of Selymbria was promoted as Titular Archiepiscopal See of Selymbria | |
| 1929 | Titular Archiepiscopal See of Silyum was established | |
| 1929 | Titular Episcopal See of Tavium was renamed as Titular Episcopal See of Tavium | |
| 1929 | Titular Episcopal See of Theodosiopolis was renamed as Titular Episcopal See of Theodosiopolis | |
| 1929 | Titular Episcopal See of Theodosiopolis was renamed as Titular Episcopal See of Theodosiopolis | |
| 1929 | Titular Episcopal See of Thermæ was renamed as Titular Episcopal See of Thermus basilicæ | |
| 1929 | Titular Episcopal See of Timbriada was renamed as Titular Episcopal See of Timbrias | |
| 1929 | Titular Episcopal See of Traianopolis was renamed as Titular Episcopal See of Trajanopolis | |
| 1929 | Titular Episcopal See of Tralles was renamed as Titular Episcopal See of Tralles | |
| 1929 | Titular Episcopal See of Trapezus was promoted as Titular Archiepiscopal See of Trapezus | |
| 1929 | Titular Episcopal See of Vasada was established | |
| 1929 | Titular Episcopal See of Æzanis was renamed as Titular Episcopal See of Æzani | |
| 1929 | Titular Archiepiscopal See of Cherson was renamed as Titular Archiepiscopal See of Chersonesus | |
| 1929 | Titular Archiepiscopal See of Phulli was established | |
| 1929 | Titular Episcopal See of Bethelea was suppressed | |
| 1929 | Titular Episcopal See of Oropus was renamed as Titular Episcopal See of Oropus | |
| 1929 | Titular Episcopal See of Usada was suppressed | |
| 1929.01.12 | Diocese of La Spezia was established (from Diocese of Luni–Sarzana and became suffragan of Genova) | |
| 1929.01.25 | Diocese of Jaboticabal was established (from Diocese of São Carlos do Pinhal and became suffragan of São Paulo) | |
| 1929.01.25 | Diocese of Rio Preto was established (from Diocese of São Carlos do Pinhal and became suffragan of São Paulo) | |
| 1929.01.25 | Metropolitan Archdiocese of Beirut (Armenian Rite) was established | |
| 1929.02.08 | Apostolic Vicariate of Jining 集寧 was established (from Apostolic Vicariate of Xiwanzi 西灣子) | |
| 1929.02.15 | Mission sui juris of Sikkim was established (from Metropolitan Archdiocese of Calcutta and Apostolic Vicariate of Dajianlu 打箭爐 and became suffragan of Calcutta) | |
| 1929.02.20 | Apostolic Prefecture of Jiaying 嘉應 was established (from Apostolic Vicariate of Shantou 汕頭) | |
| 1929.02.20 | Mission sui juris of Queenstown was established (from Apostolic Vicariate of Cape of Good Hope, Eastern District) | |
| 1929.02.21 | Apostolic Vicariate of Anqing 安慶 was established (from Apostolic Vicariate of Wuhu 蕪湖) | |
| 1929.02.21 | Apostolic Vicariate of Bengbu 蚌埠 was established (from Apostolic Vicariate of Wuhu 蕪湖) | |
| 1929.03.01 | Territorial Prelature of Guajará-Mirim was established (from Diocese of São Luiz de Cáceres and Territorial Prelature of Porto Velho and became suffragan of Belém do Pará) | |
| 1929.03.01 | Territorial Prelature of Paracatu was established (from Diocese of Montes Claros and Diocese of Uberaba and became suffragan of Diamantina) | |
| 1929.03.17 | Apostolic Prefecture of Hpyeng-yang was renamed as Apostolic Prefecture of Peng-yang | |
| 1929.03.18 | Apostolic Prefecture of Zhaoxian 趙縣 was established (from Apostolic Vicariate of Zhengdingfu 正定府) | |
| 1929.03.21 | Apostolic Prefecture of Bahama was established (from Metropolitan Archdiocese of New York) | |
| 1929.03.22 | Territorial Prelature of Diamantino was established (from Metropolitan Archdiocese of Cuiabá and became suffragan of Cuiabá) | |
| 1929.03.30 | Apostolic Prefecture of Sapporo 札幌 was promoted as Apostolic Vicariate of Sapporo 札幌 | |
| 1929.04.08 | Apostolic Vicariate of Bubuka was established (from Apostolic Vicariate of Tabora and Apostolic Vicariate of Victoria-Nyanza) | |
| 1929.04.10 | Apostolic Vicariate of Victoria-Nyanza was renamed as Apostolic Vicariate of Mwanza | |
| 1929.04.15 | Mission sui juris of Hainan 海南 was established (from Apostolic Vicariate of Beihai 北海) | |
| 1929.04.16 | Mission sui juris of Zhangdian 張店 was established (from Apostolic Vicariate of Jinanfu 濟南府) | |
| 1929.05.01 | Diocese of Paraguay was promoted as Metropolitan Archdiocese of Asunción (with suffragan sees Concepción y Chaco and Villarrica and lost territory to establish Diocese of Concepción y Chaco and Diocese of Villarrica) | |
| 1929.05.01 | Diocese of Concepción y Chaco was established (from Diocese of Paraguay and Apostolic Prefecture of Pilcomayo and became suffragan of Asunción) | |
| 1929.05.01 | Diocese of Villarrica was established (from Diocese of Paraguay and became suffragan of Asunción) | |
| 1929.05.24 | Apostolic Prefecture of Yongnian 永年 was established (from Apostolic Vicariate of Xianxian 獻縣) | |
| 1929.05.24 | Apostolic Vicariate of Zanzibar lost territory to Apostolic Vicariate of Mogadishu | |
| 1929.05.25 | Apostolic Prefecture of Luoyang 洛陽 was established (from Apostolic Vicariate of Zhengzhou 鄭州) | |
| 1929.05.25 | Mission sui juris of Yixian 易縣 was established (from Apostolic Vicariate of Baodingfu 保定府 and Apostolic Vicariate of Beijing 北京) | |
| 1929.05.28 | Metropolitan Archdiocese of Brisbane lost territory to Diocese of Rockhampton | |
| 1929.05.28 | Diocese of Toowoomba was established (from Metropolitan Archdiocese of Brisbane and became suffragan of Brisbane) | |
| 1929.06.06 | Apostolic Prefecture of Islanda was promoted as Apostolic Vicariate of Islanda | |
| 1929.06.14 | Diocese of Trento was promoted as Archdiocese of Trento | |
| 1929.06.21 | Territorial Prelature of Jataí was established (from Diocese of Goiás and became suffragan of Mariana) | |
| 1929.07.03 | Diocese of Kumbakonam lost territory to Diocese of São Tomé de Meliapor | |
| 1929.07.03 | Metropolitan Archdiocese of Madras exchanged territory with Diocese of São Tomé de Meliapor | |
| 1929.07.03 | Diocese of São Tomé de Meliapor lost territory to Metropolitan Archdiocese of Calcutta, Diocese of Chittagong, Diocese of Dacca and Diocese of Tuticorin | |
| 1929.07.03 | Diocese of Trichinopoly exchanged territory with Diocese of São Tomé de Meliapor | |
| 1929.07.10 | Apostolic Prefecture of Yazhou 雅州 was established (from Apostolic Vicariate of Suifu 敘府) | |
| 1929.07.13 | Apostolic Prefecture of Lixian 蠡縣 was promoted as Apostolic Vicariate of Anguo 安國 | |
| 1929.07.17 | Apostolic Prefecture of Mérk was established (from Metropolitan Archdiocese of Eger) | |
| 1929.07.18 | Mission sui juris of Huangzhou 黃州 was established (from Apostolic Vicariate of Hankou 漢口) | |
| 1929.07.18 | Mission sui juris of Shaowu 邵武 was established (from Apostolic Vicariate of Fuzhou 福州) | |
| 1929.07.18 | Apostolic Prefecture of Eastern Nigeria was renamed as Apostolic Prefecture of Northern Nigeria (gained territory from Apostolic Vicariate of Western Nigeria) | |
| 1929.07.18 | Apostolic Vicariate of Western Nigeria was renamed as Apostolic Vicariate of Northern Nigeria (lost territory to Apostolic Prefecture of Northern Nigeria) | |
| 1929.08.02 | Apostolic Vicariate of Shunqingfu 順慶府 was established (from Apostolic Vicariate of Chengdu 成都) | |
| 1929.08.02 | Apostolic Prefecture of Sipingjie 四平街 was established (from Apostolic Vicariate of Rehe 熱河 and Apostolic Vicariate of Shenyang 瀋陽) | |
| 1929.08.02 | Apostolic Vicariate of Wanxian 萬縣 was established (from Apostolic Vicariate of Chongqing 重慶) | |
| 1929.08.02 | Apostolic Vicariate of Northern Honan 河南北境 was renamed as Apostolic Vicariate of Weihuifu 衛輝府 | |
| 1929.11.22 | Mission sui juris of Dali 大理 was established (from Apostolic Vicariate of Yunnanfu 雲南府) | |
| 1929.12.20 | Apostolic Vicariate of Tarapacá was promoted as Diocese of Iquique (gained territory from Diocese of Arequipa and became suffragan of Santiago) | |
| 1929.12.20 | Diocese of Arequipa lost territory to Diocese of Iquique | |
| 1929.12.26 | Apostolic Vicariate of Kivu was established (from Apostolic Vicariate of Haut-Congo) |
© 2026 GCatholic.org