Collen \c(ol)-len\ as a boy's name is a variant of Collin (Scottish). See for meaning of Collen.

The baby name Collen sounds like Cullen, Callan, Colin, Colyn, Colan, Colwyn, Colwin, Cullin, Cullan, Gillen and Kellen. Other similar baby names are Colden, Collden, Colle, Colley, Colten and Conlen.