Ostyn \o-st-yn, os-tyn\ as a boy's name is a variant of Austin (French) and Osten. See for origin and meaning of Ostyn.

The baby name Ostyn sounds like Ostynn and Ostin. Other similar baby names are Oswyn, Aston, Austyn, Dustyn, Eston, Orton, Justyn, Mostyn, Ossin, Osman, Osmin, Oswin, Oswynn, Osvin and Rustyn.