| Gender | Unisex |
|---|---|
| Language(s) | English |
| Origin | |
| Language(s) | Irish Gaelic |
| Word/name | Mac Cathain |
| Meaning | Grandson or Son of Cahan |
| Other names | |
| Variant form(s) | McCain, O'kane, Mckeane |
| Cognate(s) | "Mac Cathain & O Cathain |
McCain is an Irish & Scottish English-language surname of Irish origin derived from Gaelic. The surname McCain first appeared in Derry in the province of Ulster and is Anglicised form "Mac Cathain and Ó Catháin Other spelling variations include O'Kane, Keane, McClaskey, Kane, O'Cain, McCain and many more[1]