Surname Thongsanoer (Thongsanoer 
) , all around the world, is a very rare last name. The family name Thongsanoer is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thongsanoer | Thailand |
Lueam, Thunnapat, and Passaraporn