| St. Mary's Cathedral | |
| Native Name: | புனித மரியன்னை பேராலயம் |
| Native Name Lang: | ta |
| Pushpin Map: | Sri Lanka Batticaloa Central |
| Pushpin Label Position: | right |
| Map Caption: | Location in central Batticaloa |
| Coordinates: | 7.7124°N 81.6963°W |
| Location: | Batticaloa |
| Country: | Sri Lanka |
| Denomination: | Roman Catholic |
| Status: | Cathedral |
| Functional Status: | Active |
| Groundbreaking: | [1] |
| Archdiocese: | Colombo |
| Diocese: | Batticaloa |
| Bishop: | Joseph Ponniah |
The Cathedral of St. Mary (Tamil: புனித மரியன்னை பேராலயம்|translit=Puṉita Mariyaṉṉai Pērālayam; Sinhala; Sinhalese: ශාන්ත මරියා ආසන දෙව් මැදුර Śānta Mariyā Āsana Dev Mædura) is a Cathedral of the Roman Catholic Diocese of Batticaloa in Puliyanthivu. The cathedral is a landmark and Catholic historical icon in the district of Batticaloa, Sri Lanka. It was first built in 1808 by Paschal Mudaliyar.[1]
It was co- cathedral under Diocese of Trincomalee-Batticaloa and became a cathedral after the creation of Diocese of Batticaloa in 2012.[2]