Over the centuries the name O’neill may have had many changes and the present form, according to our studies, appears to be different from the original. It is important to realize that the name may have gone through dialect variations, contractions, shortened forms of the original one, lenitions, errors due to incorrect transcriptions and voluntary changes. Therefore, we believe that the surname O’neill came originally from O’Neill, on which we are able to provide the following historical and heraldic information taken from bibliographic sources of Araldicus. The surname O’Neill is of Irish origin. It is derived from a given name of Irish origin, Gaelic ‘Niall’ ( genetive Neill ), thought to mean champion. This was adop…
Other surnames found: O’neill, O’neall, O’neil, …