Family name Kongvongsa (Kongvongsa 
) , around the world, is a rare cognomen. The surname Kongvongsa is habitual in Laos, where it is quite a rare surname, Australia, where it is a very rare surname, and Thailand.
| VARIANT | COUNTRY |
|---|---|
| Kongvongsa | Germany, Laos, Australia, United States, Thailand |
Jens, Emma, Suriyan, Patrick, Lithida, Vivianne, Vivienne, Souphanna, Khammanolack, Khamkhong, Thipsavanh, Thuanthala, Phetsavanh, and Thongsavanh