Kokrajhar district () is an administrative district in the state of Assam in north-eastern India. The district headquarters are located at Kokrajhar town. The district occupies an area of 3,169.22 km². , the district had a population of 905,764. Hindus 594,168, Muslims 184,441(20.36%).
Kokrajhar was originally a part the undivided Goalpara district. In 1957, under the administration of Bimala Prasad Chaliha as the Chief Minister of Assam, three sub-divisions were created one of which was Kokrajhar. This sub-division was made into a district on the 1 July 1983.
Places of interest
Onthai Gwlao: Located in Chandrapara near the bank of river Gwrang.