Roselyn \r(o)-sel-yn, ros(e)-lyn\ as a girl's name is a variant of Rosalind (Old German), and the meaning of Roselyn is "gentle horse".

The baby name Roselyn sounds like Rozelyn, Roslyn, Roselin, Rosalyn and Roselynn. Other similar baby names are Joselyn, Jocelyn, Josslyn, Josselyn, Joslyn, Josilyn, Joselyne, Joscelyn, Josalyn, Raelyn, Rosella, Rozely, Roselle, Roselia, Rosalyne, Rozelin, Roslynn, Roselynde, Roselynda, Roselinn, Roseline, Roselind, Roselina, Rosalynn, Rosalynd, Rosalin, Rosalen, Roseann, Royalyn, Rozlyn and Rozalyn.