Globally, Ollu (Ollu 
) is a very rare epicene first name. The first name Ollu is characteristic of Southern Asia, particularly India, where it is an extremely rare epicene name. Predominantly, Ollu is the last name as well as the forename.
Pam, Sylvie, Adrien, Kanthi, Kumari, Ramana, Ramesh, Lalita, Johann, Franck, Odette, Maramma, Madhavi, Monique, Michael, Apparao, Corinne, Patrick, Pascale, Paparao, Deborah, Damodar, Shrinu, Muriel, Mathis, Marcel, Tom, Vã, Mang, Siva, Anne, Adri, Ramu, Raju, Jean, Naga, Laurent, Eric, Yves, Yvon, Aruna, Ashok, Kenza, Padma, Durga, Nooka, Veera, Fanny, Hugo, and Lakshmi