Cognomen Janphongsri (Janphongsri 
) , worldwide, is an extremely rare last name. The last name Janphongsri is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, Janphongsri is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janphongsri | Thailand |