Across the world, Ostoic (Ostoic 
) is an extremely rare unknown gender first name. Predominantly, Ostoic is the last name as well as the forename.
Mr, Jelena, Yerica, Marcial, Berylmrs, Biljana, Daniela, Dorothy, Natalie, Daniel, Ivanica, Giovanna, Ljubomir, Tomislav, Victoria, Vladimir, Fernando, Andro Slodoban, Franciele, Matthieu, Alessandra, Alexei, Xenia, Sol, Ana, Eve, Iva, Kurt, Gian, Shaun, Stevo, Sascha, Andro, Robin, Dario, Lucia, Tracy, Vesna, Vlayo, Ivana, Zoran, Petar, and Xenia Angelica