Throughout the world, Ranku (Ranku 
) is quite a rare epicene forename. The given name Ranku is habitual in India, where it is a rare epicene name, South Africa, where it is a rare primarily male, but very seldom female name, and Saudi Arabia, where it is a rare boy's name. Very seldom, Ranku is the last name as well as the forename.
Sk, Nath, Majhi, Saini, Singh, Bagdi, Kumar, Gupta, Ghosh, Nayek, Oraon, Yadav, Mandal, Mahato, Modise, Sarkar, Sharma, Biswas, Bharti, Kumari, Paswan, Rawane, Dive, Lesoeu, Davi, Devi, Sha, Bai, Pal, Ram, Raj, Ray, Rai, Rao, Roy, Dev, Dey, Das, Lal, Tiu, Saha, Sahu, Sing, Alam, Bala, Bera, Raut, Deka, and Choudhary