In the entire world, Guillar (Guillar 
) is an extremely rare boy's first name. Much more frequently, Guillar is the last name as well as the forename.
Ana, Celso, Cesar, Karen, Pablo, Perla, Ralph, Dante, Diego, Lidia, Livio, Jorge, Jowie, Jerth, Julia, Jimmy, Norma, Neila, Ester, Irene, Margie, Marlon, Mharz, Marvie, Mirta, Marck, Ivy, Sara, Arni, Raul, Rosa, Ruby, Ryan, Dora, Glyn, Lani, Jose, Joel, Jean, Judy, Noel, Elva, Irma, Ivan, Olga, Maria, Mario, Mabel, and Melody