Batticaloa District 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 appointed by the central government of Sri Lanka. The capital of the district is the city of Batticaloa. Ampara District was carved out of the southern part of Batticaloa District in April 1961.

Batticaloa is a major city in the Eastern Province, Sri Lanka, and its former capital. It is the administrative capital of the Batticaloa District. The city is the seat of the Eastern University of Sri Lanka and is a major commercial centre. It is on the east coast, 111 kilometres (69 mi) south of Trincomalee, and is situated on an island. Pasikudah is a popular tourist destination situated 35 km (22 mi) northwest with beaches and flat year-round warm-water shallow-lagoons.