The Irish spelling would be Eoghan. It sounds like Owen, but is often equated with
Eugene.
As its not an Irish name there would be no Irish spelling for it
The word qaolionn is not Irish. Irish has no "q".
Woulfe, Wolfe (In Irish: de Bhulbh)
Neasa
Barbra
Tadhg
Krieger is a German name so it has no Irish spelling.
The spelling of the name in Irish is Séamas/Séamus. It is equivalent to the English 'James'.
How you wrote it =)
His name is spelt correctly in the question.
As a first name Siurtán in Irish; as a last name Mac Siurtáin;Iordáin is the name of the country Jordan.
Romaniel has no translation in Irish so the spelling doesn't change.