Mannar District (Tamil: மன்னார் மாவட்டம் Maṉṉār Māvaṭṭam; Sinhalese: මන්නාරම දිස්ත්‍රික්කය) is one of the 25 districts of Sri Lanka, the second level administrative division of the country. The district is administered by a District Secretariat headed by a District Secretary (previously known as a Government Agent) appointed by the central government of Sri Lanka.