Josilyn \j(o)-sil-yn, jos(i)-lyn\ as a girl's name is a variant of Jocelyn (Old German), and the meaning of Josilyn is "a member of the German tribe, the Gauts".

The baby name Josilyn sounds like Josslyn, Joslyn, Josilin, Joselyn and Josalyn. Other similar baby names are Jamilyn, Jaslyn, Jerilyn, Jesslyn, Jessilyn, Jeslyn, Jolyn, Jozlyn, Josselyn, Jossalyn, Joslynn, Joslyne, Joslin, Josiline, Joselyne, Joscelyn, Josalynn, Joclyn, Joellyn, Jonalyn, Roslyn, Roselyn and Rosalyn.