This Irish name pronounced ay-mon was popularized in the U.S. by early president of the independent republic Eamon de Valera (birth name George), who was born in the United States to an Irish mother and a Cuban father. Eamon definitely has possibilities as a successor to the epidemically popular Aidan/Aiden.
Though it may be an older generation name in Ireland, it would sound fresh elsewhere.
The original spelling of the name is Eamonn.
