Kulaura (Bengali: কুলাউড়া) is the biggest upazila (subdistrict) of the Moulvibazar District in north-eastern Bangladesh. It is bounded by Balaganj and Fenchuganj upazilas of Sylhet District in the south, Barlekha upazila and Tripura of India in the east, Tripura again in the north and Rajnagar and Kamalganj upazilas in the west. The total area of this upazila is 545 km². The average height of this locality from the sea level is about 54 feet. Even though most of the lands are plain, vast areas of its lands are hilly.