Cognomen Nirusha (Nirusha 
) , all around the world, is a very rare family name. The surname Nirusha is habitual in Southern Asia, particularly India, where it is an extremely rare surname. Much more frequently, Nirusha is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nirusha | Kuwait, Sri Lanka, Canada, South Africa, India |
Rai, Pahladi, Lachman, Laguparan, Naicker, Abeydeera, Chebiyyam, Kankesan, Prakasim, Ramraj-Pillay, Govender, Fernando, Kulatunge, Padayachy, Ramkisoon, Divyakolu, Venkatesh, Wijayamohan, Abeysekera, Rajapaksha, Dissanayake, Naguleswaran, Boppana, Chandrakumar, Moodley, Naidoo, Devi, Gali, Niru, Mouel, Sarju, Singh, Silva, Alwis, Ramla, Reddy, Dabee, Thapa, Thiru, Wolff, Mangar, Sampat, Akilan, Benham, Kumari, Ramraj, Routho, Maharaj, and Shanmuganathan