Darrellyn \d(a)-rrell-yn, darr(el)-lyn\ as a girl's name is a variant of Daryl (English). See for meaning of Darrellyn.
The baby name Darrellyn sounds like Darrylyn, Darryleen, Darlyn, Darylyn, Darrylynn, Darrylin and Darolyn. Other similar baby names are Darrelle and Darrell.