Cognomen Phapan (Phapan 
) , in the entire world, is a very rare family name. The cognomen Phapan is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, Phapan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phapan | India, Pakistan, United States, Thailand |