Oisin
- For the Irish mythological character, see Oisín.
Oisín (pronounced in Irish as USH-een, with stress on first syllable) is an Irish male given name. It is sometimes anglicized as Osheen or spelt without the diacritic, as Oisin.
Variants include Scottish Gaelic:Oisean ([ˈɔʃɪn]), Welsh:Osian (/ˈɒʃæn/) and the English Ossian.