Mac Comhdhain
Mac COMHDHAIN, Mac COMHGHAIN—IV—M'Cowane, M'Cone, MacCowan, MacKone, MacKoen; 'son of Comhdhan,' or 'Comhghan'; originally a Meath surname, but long dispersed through Ulster. It is difficult, if not impossible, to distinguish its anglicised forms from those of Mac Eoghain, which see.
Alphabetical Index to Irish Surnames