Cognomen ภูวนาค (Phuwanak 
, ภูวนาค ) , around the world, is an extremely rare family name. The surname ภูวนาค is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ภูวนาค is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ภูวนาค, Phuwanak | Thailand |