Colyn \c(o)-lyn, col-yn\ as a boy's name is a variant of Colin (Irish, Scottish, Gaelic), and the meaning of Colyn is "young creature".

The baby name Colyn sounds like Colan and Colwyn. Other similar baby names are Nolyn, Alyn, Allyn, Calan, Colum, Colm, Colt, Cole, Colby, Colden, Coldin, Colson, Coley, Colle, Col, Coll, Colla, Colis, Collin, Collen, Colman, Colton, Colten, Colwynn, Colwin, Conn, Conan, Con, Conlan, Connlyn, Conlon, Conlin, Conlen, Corin, Coren, Corwyn, Cowan, Coyan, Coyne, Crayn, Dalyn, Dolan, Flyn, Galyn, Glyn, Colet, Colas, Nolan, Nolin, Nolen and Olyn.