Surname Salgaj (Салгай 
, Salgaj 
) , in the world, is a rare cognomen. The last name Salgaj is habitual in Moldova, where it is quite a rare surname, Russia, where it is a very rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Салгай | Moldova, Russia, Ukraine |
| Salgaj | Germany |