Family name Cuvaj (Cuvaj 
) , worldwide, is a very rare last name. The last name Cuvaj is habitual in Croatia, where it is quite a rare surname, Canada, where it is a very rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Cuvaj | United States, Germany, Canada, Croatia |
|
slavko cuvaj Ban of kingdom Croatia-Slavonia, HR (b. 1851) |
|
| anton cuvaj (b. 1854) |
|
|
| adolf cuvaj (b. 1882) |
|
|
|
antun cuvaj |
|
| zlata cuvaj |
|