Last name Khongsouvankham (Khongsouvankham 
) , in all the world, is an extremely rare cognomen. The cognomen Khongsouvankham is habitual in Northern America, particularly the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khongsouvankham | United States |
Amber, Kylie, Bounthom, Vongnaly, and Phoutthasong