What does Kirwen mean?
Kirwen /kir-wen/ [2 sylls.] as a boys' name is of Irish derivation, and the name Kirwen means "little dark one". Kirwen is a version of Kerwin (Irish): also possibly (Old English) "swamp friend". Kurien is a popular last name.
How popular is Kirwen?
Kirwen is an uncommonly occurring first name for men. Kirwen is an equivalently unusual last name too for all people. (2000 U.S. Census)
Kerwin is the only popular alternative form of Kirwen (not ranked). Forms like Kirwan are uncommon. Adoption of this boy name was at its highest during 1960-1969 (usage of 0.036%) and is now less. Below is a graphed comparison of the popularity of the boy name Kirwen and associated names. (Top 1000 Birth Names Records, 2014)