Surname Niraja (Niraja 
) , in the world, is quite a rare cognomen. The cognomen Niraja is habitual in Southern Asia, particularly India, where it is a very rare surname. More frequently, Niraja is the forename as well as the last name.
Bai, Tirki, Nayak, Varma, Verma, Oraon, Yadav, Mishra, Sharma, Behera, Kumari, Pandit, Pandey, Paswan, Prasad, Thakur, Tiwari, Harish, Mohanty, Pradhan, Tripathi, Chandrapu, Toppo, Joshi, Lakra, Gupta, Ram, Ray, Rao, Das, Sahu, Rana, Rani, Devi, Jain, Mahto, Choudhary, Mohan, Singh, Sinha, Bandi, Kumar, Kujur, Patra, Patil, Patel, Panda, Reddy, Munda, and Kulakarni