Family name Thotsagool (Thotsagool 
) , in the entire world, is a rare cognomen. The last name Thotsagool is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thotsagool | Thailand |
Jaroon, Nongnuch, Krittanon, and Thotsatham