Cognomen Trangkasombut (Trangkasombut 
) , throughout the world, is a very rare family name. The last name Trangkasombut is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Trangkasombut | Thailand |
Kanyarat, Titaporn, Sithiporn, and Sitthiporn