What does Cailin mean?
Cailin \ca(i)-lin\ as a girls' name (also used as boys' name Cailin) is pronounced KAY-lin. It is of Gaelic origin, and the meaning of Cailin is "girl". Possibly a contemporary variant of Cailean (Scottish). See also Kaylin.
For more on this name, see also the related girl name Colleen.
Cailin has 24 more alternative forms via Kaylin: Kaelene, Kaelin, Kaelyn, Kaelynn, Kailan, Kaileen, Kailene, Kailin, Kailyn, Kailynne, Kalan, Kalen, Kalin, Kalyn▼, Kalynn, Kaylan, Kaylanne, Kayleen, Kayleena, Kaylen▼, Kaylinn, Kaylyn▼, Kaylynn and Kaylynne.
Cailin is a rare first name for females. Cailin is an equally rare last name for all people. (2000 U.S. Census)
Kailyn (#511 in 2014), Kaylin (#547), Kaelyn (#574), Kaylynn (#642), Kaelynn (#999), Kaylen, Kaylyn, Kalyn, Colleen, Cailyn, Kaylan and Kayleen are the popular varying forms of Cailin (#unlisted) listed in the Top 1000. Adoption of these girl names reached its apex in the year 2009 (usage of 0.273%) and is somewhat lower today (usage 0.1439%, down 47.3%), with the forms Kaylen, Kaylyn, Cailyn, Kalyn and Colleen becoming somewhat dated. Kailyn (#511), Kaylynn (#642), Kaylin (#547) and Kaelyn (#574) are four of the more chic names for newborns among these. Below is a charted comparison of the usage of the girl name Cailin and affiliated names. (2014 Birth Statistics)
Cailin is alike in pronunciation to Caelin, Cailen, Cailene, Cailynn, Calen, Calin, Callan, Callen, Calyn, Caoilinn, Cauline, Cayelin, Caylen and Caylyn. Other suggested similar baby names are Cailie, Caitlin, Calina, Carlin, Catlin and Ciline. These names tend to be more frequently used than Cailin.