Jamilyn \j(a)-mil-yn, jam(i)-lyn\ as a girl's name is a variant of Jamie (Hebrew), and the meaning of Jamilyn is "he who supplants".

The baby name Jamilyn sounds like Emmalyn, Emlyn, Emelyn, Emalyn, Emmelyn and Jaimelynn. Other similar baby names are Tamilyn, Jalyn, Jacelyn, Jaclyn, Jaklyn, Jacklyn, Jacolyn, Jacalyn, Jaelyn, Jamille, Jamilla, Jamilia, Jamilah, Jamila, Jamison, Janalyn, Jaslyn, Jazzlyn, Jazlyn, Jerilyn, Josilyn, Kamlyn, Pamelyn and Tamlyn.