Family name Хомчайвонг (Хомчайвонг 
) , all over the world, is an extremely rare cognomen. The surname Хомчайвонг is characteristic of Eastern Europe, particularly Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Хомчайвонг | Ukraine |
Homchaivong, and Homchaiwong