The name Eammon is of Irish origin and means "rich protector." It is derived from the Irish name Éamonn, which is composed of the elements é, meaning "alth," and am, meaning "protection." The name has been associated with several historical figures in Ireland, including Éamonn Cerrball mac Muircheartaig, who was a king of Connacht in the 10th century. Despite its rich history, Eammon is not particularly common today and is considered to be a unique and distinctive name choice.
"The name Eamonn saw an uptick in popularity between 1997 and 2006, with a total of eleven babies given this name over the decade."