Surname Bouphaphanh (Bouphaphanh 
) , in all the world, is a rare cognomen. The cognomen Bouphaphanh is habitual in Laos, where it is quite a rare surname, Australia, where it is a very rare surname, and Canada. Measured by absolute frequency, it is the most numerous in Laos, the United States, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Bouphaphanh | Laos, Canada, United States, Australia |