Ailean
| Gender | Masculine |
|---|---|
| Language(s) | Scottish Gaelic |
| Origin | |
| Language(s) | Celtic |
| Meaning | "rock" |
| Other names | |
| Cognate(s) | Alan, Allan |
Ailean is a masculine given name in the Scottish Gaelic language. It is the Scottish Gaelic equivalent of the name Alan, Allan in English. Alan is considered to be a name of Celtic origin, possibility derived from a word meaning "rock"; it was introduced to England by Breton followers of William the Conqueror, in the 11th century.