In all the world, Rennu (Rennu 
) is quite a rare female first name. The forename Rennu is habitual in Southern Asia, particularly India, where it is a rare female name. Much less frequently, Rennu is the last name as well as the forename.
Ram, Yadav, Sharma, Kumari, George, Jassal, Jagdev, Tivari, Mahajan, Saksena, Agarwal, Dhindsa, Dhillon, Gamallo, Thadani, Sumpulolo, Varghese, Marimuthu, Ormus, Verma, Vinod, Varma, Ren, Amin, Bala, Rana, Rani, Devi, Saini, Singh, Jayasaval, Sinha, Kanda, Kumar, Patel, Rahul, Denvi, Devie, Gupta, Edevi, Batra, and Jekatheesan