Jannie \j(an)-nie\ as a girl's name is a variant of Jana (Hebrew), and the meaning of Jannie is "God is gracious".
The baby name Jannie sounds like Jennie, Janie, Jinnie, Janne, Jannae, Jaynie, Jeannie and Jonnie. Other similar baby names are Lannie, Sannie, Nannie, Fannie, Hannie, Jannis, Jannice, Jannine, Zannie and Vannie.