Surname Uthum (Uthum 
) , across the world, is a rare family name. The family name Uthum is characteristic of Thailand, where it is a rare surname, and South Africa, where it is a very rare surname. Likewise, Uthum is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uthum | Sri Lanka, South Africa, India, Thailand, United States |