Surname Ги-Сун (Ги-Сун 
) , around the world, is an extremely rare cognomen. Much more prevalently, Ги-Сун is the forename as well as the last name. Parts of the name also exists independently as a first name Ги, and a last name Сун.
| VARIANT | COUNTRY |
|---|---|
| Ги-Сун | Kazakhstan |