Cognomen Phong-Oudom (Phong-Oudom 
) , worldwide, is an extremely rare family name. The family name Phong-Oudom is habitual in Northern America, particularly Canada, where it is an extremely rare surname. Parts of the name also exists independently as a first name Phong, and a last name Oudom.
| VARIANT | COUNTRY |
|---|---|
| Phong-Oudom | Canada |