Last name Trisom (Trisom 
) , globally, is a very rare family name. The surname Trisom is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Trisom is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trisom | India, Thailand |
Mutita, Phatthranan, and Phattharanan