Jonni \j(on)-ni\ as a girl's name is a variant of Johnna (Hebrew), and the meaning of Jonni is "God is gracious".

The baby name Jonni sounds like Jenni, Joni, Jinni, Jonnie and Jonna. Other similar baby names are Bonni, Conni, Donni, Lonni, Ronni, Sonni and Vonni.