Jonalyn \j(o)-nal-yn, jon(a)-lyn\ as a girl's name is a variant of Johnna (Hebrew), and the meaning of Jonalyn is "God is gracious".

The baby name Jonalyn sounds like Janalyn and Jonalynn. Other similar baby names are Josalyn, Donnalyn, Genalyn, Jalyn, Jacalyn, Janalynn, Jennalyn, Jenalynn, Jeralyn, Jolyn, Jocelyn, Jozlyn, Josslyn, Jossalyn, Joslyn, Josilyn, Joselyn, Josalynn, Joclyn and Joellyn.