Popularity: 1666
Origin: German
Meaning: slender
This modern gender-neutral name peaked in 2012 for boys but also kindly lends itself to girls. A great alternative to classic girl names such as Ellen, Helen, and Kelly, Kellen is a welcome change. With German origins, Kellen means “slender” and comes with a bunch of nicknames that are more masculine and feminine sounding. This includes Kel, El, and Ellen. Kellen was possibly popularized by Twilight actor Kellen Lutz which is why it peaked for baby boy’s in the early 2010s.