Cognomen Porpan (Porpan 
) , worldwide, is a very rare surname. The cognomen Porpan is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, and Philippines, where it is an extremely rare surname. Very seldom, Porpan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Porpan | United States, Philippines, Thailand |