Family name Gruic (Gruic 
) , worldwide, is a very rare surname. The surname Gruic is characteristic of Croatia, where it is a very rare surname, the United States, where it is an extremely rare surname, and the United Kingdom.
Amy, Rachel, Robert, Daniel, George, Thomas, Matthew, Marjan, Gregory, Natasha, Vanessa, Stefania, Cherylyn, Branimir, Nicholas, Natalie, Marcia, Filip, Nicky, Iva, Mark, Bree, Paul, Greg, Jere, Nick, Susan, Chris, Peter, Donna, Gerri, Laura, Jamie, Josip, Constance, and Geraldine