Roibín
In Irish it's: A Bobby, a chara / A Bobby dhil
Yes. 4th Generation Irish.
Johnson is not an Irish name. This is not to say there are not Johnsons with Irish ancestry. So no Irish county is associated with the name Johnson.
The form used in Irish is Heather as in English.
Yeah I would say if was
match-you
As a male name, Dónall.
YES! Some say it's the Irish version of Charles, but that is not true.
If a given name it would stay the same; no Irish equivalent.
Devin in Irish is 'Dubhain's Heir'. It is a very popular boy name.
The native Irish name Doireann has been wrongly anglicized as Dorothy.
The name has no Irish language version; it's still spelled Irene.