1) Irish girl name 
Cailin is an Irish name for girls. The meaning is `girl, pure` The name Cailin is most commonly given to Scottish girls. (4 times more often than to American girls.) Cailin is given to boys and girls in Scotland and England and Wales What do they use in other countries? Callen Callan Caelan Caylen Cailen Caelin Coleen (English) Caylin Collis The na...