Family name Vatanatham (Vatanatham 
) , around the world, is a very rare cognomen. The surname Vatanatham is characteristic of Thailand, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States. Much less frequently, Vatanatham is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vatanatham | Canada, United States, Thailand |