Meaning and name origin
Kellen \k(el)-len\ as a boy's name (also used as girl's name Kellen), is pronounced KEL-en. It is of Gaelic origin, and the meaning of Kellen is "slender". An ancient given name. May be related to Kell, or possibly (Old German) "swamp".
Kellen is not a popular first name for males but a very popular surname or last name for all people (#22159 out of 88799, Top 25%) (2000 U.S. Census).
Displayed below is the baby name popularity of the name Kellen for boys. Kellen reached its highest rank of #337 in the U.S. in 2012. (2014 statistics).
Displayed below is a comparison of the popularity of the boy name Kellen and its variant forms. Popular variation forms ranked in the Top 1000/100 are Kellan (#385), Kellen (#444), Kelan and Kaelan. (2014 statistics).
Kellen▲ is also pronounced similarly to Collen, Cullen▲, Kalen, Kealan, Keallan, Keallin, Kealon, Keelin, Kelwin, Kelwyn, Killean and Kylen. Other suggested similar baby names are Keller, Kelley▼, Kellven, Kelten, Kelven and Mellen. These names tend to be more commonly used than Kellen.