Family name Kousonsanong (Kousonsanong 
) , around the globe, is a rare cognomen. The surname Kousonsanong is habitual in Laos, where it is quite a rare surname, Malaysia, where it is a very rare surname, and France, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Laos, the United States, and Malaysia.
| VARIANT | COUNTRY |
|---|---|
| Kousonsanong | Canada, Laos, United States, Malaysia, France |