The Cathedral of St. Mary (; à ÂÃÂnta MariyàÃÂsana 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.
It was co- cathedral under Diocese of Trincomalee-Batticaloa and became a cathedral after the creation of Diocese of Batticaloa in 2012.