Roslynn \r(o)-sly-nn, ros-lynn\ as a girl's name is a variant of Rosalind (Old German), and the meaning of Roslynn is "gentle horse".

The baby name Roslynn sounds like Roslynne, Roslyn, Rosalynn, Rozlynn and Roselynn. Other similar baby names are Joslynn, Aislynn, Jaslynn, Joslynne, Joslyne, Joslyn, Josalynn, Raelynn, Raylynn, Rolyne, Rosalyne, Rozalynn, Roselyn, Roselinn, Rosalynd, Rosalyn, Rosalinn, Roseann and Rozlyn.