Udalguri district is one of the 27 districts of Assam state in north-eastern India. Udalguri town is the headquarters of the district. This district is bounded by Bhutan and West Kameng district of Arunachal Pradesh state in the north, Sonitpur district in the east, Darrang district in the south and Baksa district in the west. Area of the district is 1852.16 km.
Odalguri (Also spelled as Udalguri),is a town and a town area committee and the headquarters of Udalguri district in the north-eastern Indian state of Assam. Earlier, Udalgiri was a sub-divisional headquarters in Darrang District.