Last name Valentinčić (Valentinčić 
) , in all the world, is an extremely rare cognomen. The surname Valentinčić is habitual in Southern Europe, particularly Croatia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Valentinčić | Croatia |
| vera valentinčić HR (b. 1920) |
|
|
| ludvik valentinčić HR |
|