 | 1832 | 1833 | 1834 |  |
Date | Country | Change |
| 1833 |  Lithuania | Diocese of Žyrovyci (Ukrainian Rite) was suppressed |
| 1833 |  Netherlands | Apostolic Administration of Haarlem was restored (from Mission sui juris of Batavia) |
| 1833.03.08 |  USA | Diocese of Detroit was established (from Diocese of Cincinnati and became suffragan of Baltimore) |
| 1833.06.08 |  French Polynesia,  Pitcairn Islands | Apostolic Vicariate of Eastern Oceania was established (from Apostolic Prefecture of South Seas Islands) |
| 1833.06.08 | French Polynesia | Apostolic Prefecture of Southern Oceania was established (from Apostolic Prefecture of South Seas Islands) |
| 1833.12.07 |  Italy | Diocese of Nocera de’ Pagani was restored (from Diocese of Cava and became suffragan of Salerno) |
| 1833.12.07 | Italy | Diocese of Sarno was restored (from Diocese of Cava and became suffragan of Salerno) |
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