Family name Cayas (Cayas 
) , in the entire world, is quite a rare last name. The cognomen Cayas is characteristic of Philippines, where it is quite a rare surname, Peru, where it is a rare surname, and Saudi Arabia. Not in comparison with a country's population, it is commonest in Philippines, Peru, and the United States. Very seldom, Cayas is the forename as well as the last name.
Aj, Roma, Roel, Rene, Rick, Ruth, Rudy, Ryan, Gina, Lily, Rosa, Lita, Lynn, Lyne, Lyle, Jane, Jose, John, Joan, Joel, Joey, Lito, Raul, Keno, Ador, Jm, Ara, Ken, Pio, Gil, Leo, Lea, Liz, Jay, Jun, Ted, Vee, Mary, Mark, Mike, Siay, Seko, Alex, Alma, Abel, Adam, Joje, and Jean