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.
Oisin is a 1970 Irish short documentary film directed by Patrick Carey. It was nominated for an Academy Award for Best Documentary Short.