Surname Gilaga (Gilaga 
) , across the world, is a rare cognomen. The surname Gilaga is characteristic of Philippines, where it is a rare surname, and the United States, where it is an extremely rare surname.
Ana, Romulo, Divina, Gloria, Janeth, Joecel, Nelsie, Elizer, Erasto, Merlita, Antonio, Agapito, Cristia, Bernard, Rodrigo, Richard, Geralyn, Genalyn, Lalaine, Jovanie, Elpedio, Eduardo, Arnita, Sheryl, Samson, Samuel, Leo, Joy, Ryan, Gina, Leah, Maria, Mario, Sanny, Ariel, Abner, Ma. Juvy, Cesar, Romel, Diana, Grace, Lunie, Jessy, Eliel, Edwin, Wilma, Marife, Milana, Patty, and Merecris