Cognomen Chaiyaso (Chaiyaso 
, ไชยาโส , ไชยยาโส ) , in the world, is a rare family name. The last name Chaiyaso is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
Pem, Chutipon, Kanokwan, Pattawat, Tanakarn, Natthaya, Nantanee, Nuntinee, Sawangjit, Chaovanin, Cherdsak, Patcharee, Thiraporn, Natnaphat, Nutnaphas, Satthanuwat, Chompunoot, Thanapakorn, Thanongsak, Preechayakorn, Rattanamala, Prasopchai, Natthiyaporn, Chawalit, Atittaya, Amita, Petch, Manoch, Arthit, Comsan, Manlika, Montree, Sumunya, Sophita, Aeknarin, Areerat, Chanida, Bunyang, Janjira, Nattaya, Nooknuch, Nuttaya, Warawat, Surachai, Supattra, Aeknalin, and Watcharaporn