Surname Lobunchongsook (Lobunchongsook 
) , throughout the world, is a very rare family name. The cognomen Lobunchongsook is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lobunchongsook | Thailand |
Narin, Montri, Suwanna, Thanavin, and Napussanun