Surname ทรายแก้ว (Saikaew 
, Saikeo 
, Saikaeo ) , in the world, is quite a rare family name. The cognomen ทรายแก้ว is characteristic of Thailand, where it is quite a rare surname, Norway, where it is a very rare surname, and Malaysia. Measured by absolute frequency, this name is the most popular in Thailand, the United States, and Malaysia. Very seldom, ทรายแก้ว is the forename as well as the last name.