Carlyn is a variation of Carla (English, German, Italian, Portuguese, Latin, and Scandinavian).
Carlyn is also a variation of Carlin (English and Latin).
Carlyn is also a variation of Carol (English).
Carlyn is also a pet form (English) of Caroline (English, French, and Scandinavian).
Carlyn is uncommon as a baby name for girls. At the modest height of its usage in 1943, 0.005% of baby girls were named Carlyn. Its ranking then was #965. The baby name has since dropped in popularity, and is currently of very light use. In 2018, within the group of girl names directly related to Carlyn, Caroline was the most widely used.
Baby names that sound like Carlyn include Carlein, Carlijn, Carline, Carlyne, Carlynne, Karlein, Karlijn, Karline, Karlyne, Carelyn, Carlin, Carlinn, Carlynn, Caroyln, Corlene, Karelyn, Carilin, Cariline, Carleen, and Carlene.