Erected as the Diocese of Mannar, separating from the Diocese of Jaffna in 1981, this Diocese is Saffragan to the Archdiocese of Colombo.
Ordinary
- Most Rev. Dr. Emmanuel Fernando
Diocesan Director of Education
- Rev. Fr. C. Anthonighas Dalima
Notable Schools
| Name | Year | Location | Age |
|---|---|---|---|
| St. Xavier’s College | 1870 | Mannar | 150 |
Bishops
- Most Rev. Dr. Thomas Savundranayagam, Bishop of Mannr from 1981 – 1992
- Most Rev. Dr. Rayappu Joseph, Bishop of Mannar from 1992 – 2016
- Most Rev. Dr. Kingsley Swampillai, Apostolic Administrator of Mannar from 2016 – 2017
- Most rev. Dr. Fidelis Emmanuel Fernando, Bishop of Mannar from 2017 –
