| Jurisdiction: | Diocese |
| Kohima | |
| Latin: | Dioecesis Kohimaensis |
| Country: |  India |
| Rite: | Latin Rite |
| Cathedral: | Mary Help of Christians Cathedral |
| Patron: | Mary Help of Christians |
| Area Km2: | 16,579 |
| Population: | 2,427,000 |
| Population As Of: | 2019 |
| Catholics: | 61,731 |
| Catholics Percent: | 2.5 |
| Bishop: | James Thoppil |
| Emeritus Bishops: | Jose Mukala Bishop Emeritus (1998-2009) |
| Website: | Website of the Diocese |
| Parishes: | 52 |
| Priests: | 86 |
The Roman Catholic Diocese of Kohima (Latin: Kohimaen(sis)) is a diocese headquartered in the city of Kohima, Nagaland, in the ecclesiastical province of Imphal in India. Its territory includes the entire state of Nagaland.