| Oisín | |
| Pronunciation: | in Irish əˈʃiːnʲ, ˈɔʃiːnʲ/ |
| Gender: | Male |
| Meaning: | "fawn", "little deer" |
| Region: | Ireland |
| Language: | Irish |
| Origin: | os |
| Alternative Spelling: | Oisin |
| Variant Forms: | Osheen, Ossian, Oisean, Osian |
Oisín (in Irish pronounced as /əˈʃiːnʲ, ˈɔʃiːnʲ/, approximately) is an Irish male given name; meaning "fawn" or "little deer", derived from the Irish word Irish: os ("deer") + Irish: -ín (diminutive suffix). It is sometimes anglicized as Osheen or spelt without the acute accent (fada), as Oisin.
Variants in other languages include Gaelic; Scottish Gaelic: Oisean (in Gaelic; Scottish Gaelic pronounced as /ˈɔʃan/), Welsh: [[Osian (name)|Osian]] and English: Ossian.