Around the world, Onnis (Onnis 
) is a rare largely masculine, but uncommonly female forename. The forename Onnis is habitual in Southern Europe, particularly Italy, where it is a rare epicene name. More prevalently, Onnis is the last name as well as the forename.
Mr, Gigi, Lena, Lisa, Luca, Luis, Luka, Léo, Jose, Joao, Jody, Jean, Juan, Tore, Tina, Nara, Nino, Elia, Elio, Eric, Enza, Vity, Gina, Gian, Gabb, Dora, Ms, Ana, Cã, Don, Leo, Lã, Ica, Mary, Sara, Anto, Ines, Anna, Paul, Pina, Pier, Rosa, Rose, Rein, Remo, Rino, Rita, Davi, Kiwa, and Irma