Cognomen Chalao (เฉลา 
, Chalao 
) , all over the world, is a rare family name. The family name Chalao is characteristic of Thailand, where it is a rare surname, Israel, where it is a very rare surname, and Chile, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Thailand, Brazil, and the United States. Much more frequently, Chalao is the forename as well as the last name.