Idunna \i-dunna, id(un)-na\ as a girl's name is a variant of Iduna (Old Norse), and the meaning of Idunna is "loving one".

The baby name Idunna sounds like Idonna, Adanna, Idania, Idina, Idona, Idonea, Idonia and Idiana. Other similar baby names are Tunna, Ianna, Ilonna, Ioanna, Ivanna and Ivonna.