Surname Chalayon (Chalayon 
) , around the world, is a very rare cognomen. The family name Chalayon is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Chalayon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chalayon | United States, Philippines, Thailand |