Cognomen Сун-Ай (Сун-Ай 
) , globally, is an extremely rare last name. Much more prevalently, Сун-Ай is the forename as well as the last name. Parts of the name also exists independently as a last name Сун, and a first name Ай.
| VARIANT | COUNTRY |
|---|---|
| Сун-Ай | Kazakhstan |