Family name Naphalak (Naphalak 
) , throughout the world, is an extremely rare surname. Predominantly, Naphalak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Naphalak | United States, Thailand |
Fuino, Ladnajan, Thapakornthip, Thapakorntip, and Thaphakornthip