Rosalin \r(o)-sa-lin\ as a girl's name is a variant of Rosalind (Old German), Rosalyn and Rose (Latin), and the meaning of Rosalin is "gentle horse; rose".
The baby name Rosalin sounds like Rosaline, Rosalina, Rozalin, Roselin, Rosalinn and Rosalen. Other similar baby names are Rosalie and Rosalia.