Last name Nirja (Nirja 
) , in all the world, is a rare family name. The surname Nirja is characteristic of India, where it is a very rare surname, Philippines, where it is an extremely rare surname, and the United States. Much more prevalently, Nirja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nirja | Australia, Nepal, United States, India, Indonesia |
Kay, Mittal, Sharma, Shukla, Kapoor, Kumari, Parikh, Pandey, Thakur, Tivari, Tiwari, Saksena, Agraval, Avasthi, Chauhan, Pandeya, Dikshit, Dvivedi, Jaiswal, Trivedi, Shrestha, Kulkarni, Mishra, Yadav, Verma, Varma, Pal, Ray, Rai, Jha, Shah, Soni, Kaul, Rani, Devi, Garg, Tripathi, Jain, Singh, Sinha, Kumar, Patil, Patel, Pande, Desai, Gupta, Joshi, Tyagi, Mehta, and Shrivastav