Carolein \c(a)-ro-lein\ as a girl's name is a variant of Caroline (Old German), and the meaning of Carolein is "free man".

The baby name Carolein sounds like Carolin and Carlein. Other similar baby names are Caralin, Carlin, Carleen, Carlen, Carolynn, Carolyn, Carolina, Carolena, Carolee, Carole, Carolann, Karolin, Karlein, Carollyn, Carolan, Carllen, Carileen, Caraleen and Carolien.