| Jurisdiction: | Diocese |
| Aizawl | |
| Latin: | Dioecesis Aizavlensis |
| Country: |  India |
| Rite: | Latin Rite |
| Cathedral: | Christ the King Cathedral in Aizawl |
| Parishes: | 32 |
| Area Km2: | 28,002 |
| Population: | 5,072,598 |
| Population As Of: | 2020 |
| Catholics: | 41,067 |
| Catholics Percent: | 0.8 |
| Metro Archbishop: | Victor Lyngdoh |
| Vicar General: | Fr. K. M. Arulappan |
| Website: | Website of the Diocese |
| Priests: | 80 |
| Patron: | St. Joseph |
The Roman Catholic Diocese of Aizawl (Latin: Aizavlen(sis)) is a diocese located in the city of Aizawl in the ecclesiastical province of Shillong in India.