What does Kieren mean?
Kieren /kier-en/ [2 sylls.] as a boys' name. Kieren's name origins are Irish and Gaelic, and the meaning of Kieren is "black". Kieren is an alternate spelling of Kieran (Irish, Gaelic). Karren is a conventional last name.
How popular is Kieren?
Kieren is an uncommonly occurring given name for males but a somewhat prominent last name for both adults and children (#130443 out of 150436, Top 87%). (2000 U.S. Census)
Popular related forms of Kieren (not ranked) appearing in the Top 1000 are Ciaran, Kieran (#576 last year) and Kieron. Variants like Kiran are seldom used. Adoption of these boy names reached its most widespread in the year 2011 (usage of 0.1753%) and is almost as widespread today (usage 0.1413%, down 19.4%). Kieran (#576) is the most fashionable baby name in this list. Shown below is an analysis of the popularity of Kieren and corresponding names. (2014 Birth Statistics)