Last name Upatham (Upatham 
) , worldwide, is a rare family name. The surname Upatham is characteristic of Thailand, where it is a rare surname, Singapore, and Australia, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Thailand, the United States, and Singapore. Also, Upatham is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Upatham | Australia, Thailand, United States, Singapore |
| suchart upatham |
|