| Jurisdiction: | Diocese |
| Badulla | |
| Latin: | Dioecesis Badullana |
| Local: | பதுளை மாவட்ட |
| Country: | Sri Lanka |
| Province: | Colombo |
| Metropolitan: | Colombo |
| Area Km2: | 9,349 |
| Population: | 1,724,000 |
| Population As Of: | 2012 |
| Catholics: | 18,635 |
| Catholics Percent: | 1.1 |
| Denomination: | Roman Catholic |
| Sui Iuris Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 18 December 1972 |
| Cathedral: | Cathedral of St Mary in Badulla |
| Bishop: | Echchampulle Arachchige Jude Nishanta Silva |
| Bishop Title: | Bishop elect |
| Metro Archbishop: | Malcolm Ranjith |
| Suffragan: | for one --> |
| Archdeacon: | for one--> |
| Emeritus Bishops: | Julian Winston Sebastian Fernando |
| Website: | Website of the Diocese |
The Roman Catholic Diocese of Badulla (Lat: Dioecesis Badullana) is a diocese of the Latin Church of the Roman Catholic Church in Sri Lanka.
Erected as the Diocese of Badulla in 1972, the diocese was created from territory in the Diocese of Kandy. The diocese is suffragan to the Archdiocese of Colombo. Its cathedral is St. Mary’s church.
The current bishop is Julian Winston Sebastian Fernando, appointed in 1997.