In Irish it would look like "Donnchadh Seán".
It doesn't look like a Gaelic word.
It doesn't look like a Gaelic word.
It doesn't look like Gaelic.
It doesn't look like a Gaelic word.
It doesn't look like Gaelic: no "y".
It doesn't look like Scots Gaelic.
It doesn't look like a Gaelic word.
It doesn't look like Scottish Gaelic.
It doesn't look like Scottish Gaelic.
Never heard of it; it doesn't look like Gaelic with two 'p's.
Alba
Suyth