Last name Keophasouk (Keophasouk 
) , worldwide, is a rare surname. The family name Keophasouk is habitual in Laos, where it is quite a rare surname, and the United States, where it is an extremely rare surname. Also, Keophasouk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Keophasouk | Laos, United States |