| Jurisdiction: | Diocese |
| Taichung | |
| Latin: | Dioecesis Taichungensis |
| Local: | 天主教台中教區 |
| Territory: | Taichung and counties of Changhua and Nantou |
| Province: | Taipei |
| Archdeaconries: | 5 |
| Area Km2: | 7,836 |
| Population: | 4,235,174 |
| Population As Of: | 2010 |
| Catholics: | 26,395 |
| Catholics Percent: | 0.6 |
| Parishes: | 36 |
| Members: | 29,012 |
| Denomination: | Roman Catholic |
| Patron: | Christ the Saviour |
| Bishop: | Martin Su Yao-wen |
| Metro Archbishop: | Thomas Chung An-zu |
| Suffragan: | for one --> |
| Vicar General: | Joseph Huang Ching-fu Peter Chou Lai-shun (Walis Nomin) |
| Archdeacon: | for one--> |
| Emeritus Bishops: | Joseph Wang Yu-jung Bishop Emeritus (1986-2007) |
| Map: | Taiwan - Diocesi di Taichung.png |
| Website: | Website of the Diocese |
The Diocese of Taichung (la|Dioecesis Taichungensis) is a Latin Church diocese of the Catholic Church in Taiwan.
Originally erected as an Apostolic Prefecture of Taichung in 1950, it was elevated to a full diocese in 1962. The diocese is a suffragan of the Archdiocese of Taipei.
The current bishop is Martin Su Yao-wen, appointed in June 2007.