Katlyn is an English variant transcription of the name Caitlin (English and Irish).
Katlyn is also a variant transcription of the name Kaitlin (English).
Katlyn is also a variant transcription of the name Katherine (English).
Katlyn is unusual as a baby girl name. Its usage peaked modestly in 1995 with 0.066% of baby girls being given the name Katlyn. It had a ranking of #223 then. The baby name has substantially fallen in popularity since then, and is now of very light use. In 2018, among the family of girl names directly linked to Katlyn, Katherine was the most regularly used.
Baby names that sound like Katlyn include Catlin, Catlyn, Kadelyn, Kaetlin, Kaetlyn, Kaitleen, Kaitlin, Kaitlinn, Kaitlinne, Kaitlyn, Kaitlyne, Kaitlynn, Kaitlynne, Kate Lynn, Kate-Lynn, Katelin, Kateline, Katelinn, Katelyn, and Katelyne.
† Pronunciation for Katlyn: K as in "key (K.IY)" ; AE as in "at (AE.T)" ; T as in "tee (T.IY)" ; L as in "lay (L.EY)" ; IH as in "it (IH.T)" ; N as in "knee (N.IY)"