Across the world, Gainu (Gainu 
) is quite a rare primarily boy's, but very seldom girly given name. The forename Gainu is characteristic of India, where it is a rare predominantly male, but very infrequently feminine name, and Nigeria, where it is a very rare dominantly masculine, but uncommonly feminine name. Much less frequently, Gainu is the last name as well as the forename.
Sah, Yadav, Mandal, Manjhi, Mahato, Mushar, Sahani, Sharma, Pandit, Paswan, Prasad, Rawani, Thakur, Mukhiya, Pasavan, Pasawan, Ravidas, Harijan, Khirahar, Rishidev, Mahaladar, Chaudhary, Tanti, Laiya, Rishi, Rajak, Saw, Ram, Ray, Roy, Das, Lal, Nag, Miya, Muni, Sada, Chaudhari, Shah, Bhoi, Devi, Turi, Naik, Manzi, Mahto, Mochi, Minya, Sahni, Singh, Suna, and Choudhary