Cognomen สุพานิช (Supanit 
, Supanich 
, Suphanit ) , in all the world, is quite a rare family name. The family name สุพานิช is characteristic of Thailand, where it is quite a rare surname, the United States, where it is a very rare surname, and Indonesia. Likewise, สุพานิช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Supanit | Thailand, United Kingdom, United States, India, Indonesia |
| Supanich | Canada, Philippines, Thailand, United States, Malaysia |
| Suphanit | United States, Thailand, India |
| สุพานิช | Thailand |
Soopanit, Supanichar, Supanij, and Suphanich