Illyssa \i(l)-lyssa, ill(ys)-sa\ as a girl's name is a variant of Alice (Old German), and the meaning of Illyssa is "noble, exalted".

The baby name Illyssa sounds like Ilyssa, Allyssa, Illissa and Ellyssa. Other similar baby names are Allessa, Ilysse, Ilysa, Ellissa, Alyssa, Allissa, Allyssha, Allysa, Calyssa, Delyssa, Ilissa, Elyssa, Ilysia, Illsa, Julyssa, Kalyssa, Talyssa and Ulyssa.