Keagen Is A Boys Name Of Irish Origin. It Is Derived From The Irish Clan Name Mac Aodhagáin Which Means "small Flame" Or "ardent." Perfect For Those With Fiery And Passionate Personalities, Keagen Is Not For The Faint Of Heart. While Baby Keagen May Not Always Follow The Rules, They Will Always Stand By Their Beliefs. Warm-hearted Rather Than Hot-headed, Your Little Bright Spark Will Make An Impact Wherever They Go.