Mangan (surname)
| Language(s) | Irish Gaelic |
|---|---|
| Origin | |
| Meaning | "descendant of Mongan " |
| Region of origin | Connacht, County Limerick, and County Tyrone |
| Other names | |
| Variant form(s) | Mongan |
Mangan is an Irish surname anglicised from the Gaelic Ó Mongáin, meaning "descendant of Mongan". It was originally a byname for someone with a luxuriant head of hair (from mongach. meaning "hair" or "mane").