Cognomen Kayao (Kayao 
) , all around the world, is a rare last name. The cognomen Kayao is habitual in Japan, where it is a rare surname, Thailand, and Philippines, where it is a very rare surname. Much less frequently, Kayao is the forename as well as the last name.
Moid, Krittin, Pensapak, Donaria, Noraiha, Norhaya, Zulamin, Supisara, Sumbabay, Buharie, Andraguia, Bailanie, Kasamela, Ploenjai, Salipalaga, Athitthan, Benchawan, Phutsadaporn, Punyathida, Aubonrat, Chumpol, Arupong, Siriwan, Myra, Dina, Sahid, Shiyo, Suwit, Arman, Rasul, Renie, Larry, Jerry, Faela, On Uma, Kasira, Parida, Paipak, Prakit, Johara, Wiriya, Zainab, Anantachai, and Anantachock