Family name Rirao (Rirao 
) , worldwide, is quite a rare last name. The surname Rirao is characteristic of Philippines, where it is quite a rare surname, Canada, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Philippines, the United States, and Canada.
Ria, Sonny, Arnel, Agnes, Airen, Aurea, Carlo, Celia, Cyrus, Pablo, Pedro, Ramon, Ramil, Romeo, Romar, Roxan, Rency, Regie, Ruben, Rhoda, Daisy, Larry, Shane, Liezl, Manny, Marta, Jun, Mary, Myla, Anne, Beth, Rose, Ruby, Rudy, Lita, Jake, Jose, John, Joel, Jojo, Jean, Nora, Nena, Erna, Emma, Maria, Mario, Marlo, and Jesse