Cognomen Lerssupsin (Lerssupsin 
) , globally, is a very rare last name. The last name Lerssupsin is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lerssupsin | Thailand |
Kathawut, Rushanai, Pornpimon, and Pattharaporn