Family name Soutannouvong (Soutannouvong 
) , across the world, is an extremely rare cognomen. The last name Soutannouvong is habitual in Northern America, particularly Canada, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Soutannouvong | Canada |
Kanh, Sirivanh, Souksakhone, and Chanthaphone