Kellen is German in origin and Irish in spirit. Kellen is in the Top 500. Kellen means "powerful" or "bright-headed" or some refer to as "mighty warrior." Other variations of Kellen or Kellan include Kaelan, Kallen, Keelan, Keilan, Keillan, Kelan, Kelden, Kelle, Kellyn, and Kellin
Boy or Girl Name: Kiernan (keernin). Meaning: Dark.
It is of Irish and Gaelic origin, and the meaning of Mackenzie is "fire-born; son of the wiseruler". The name's development was also influenced by Cainnech, meaning "good-looking". Originally a surname and male name, but actress Mackenzie Phillips has made it prominent as a masculine name for girls.
19 Celtic Names So Beautiful You'll Want To Have Children