Cognomen Birčić (Birčić 
) , around the world, is a rare family name. The cognomen Birčić is habitual in Southern Europe, particularly Croatia, where it is quite a rare surname, and Bosnia and Herzegovina.
Mia, Mišel, Branka, Katija, Roxana, Josipa, Jelena, Mihael, Ivanka, Dalibor, Dominik, Domagoj, Željka, Antonija, Branimir, Marijan, Mirela, Milica, Monika, Ana, Ela, Mijo, Ante, Ivan, Marin, Stipe, Antea, Denis, Josip, Tvrtko, Ivana, Zoran, Matija, Mateja, Kristina, and Danijela