Iona \i(o)-na\ as a girl's name is of Greek origin. Place name: an island in the Hebrides where Saint Columba (sixth century) founded a monastery of the Celtic Church. Orchestra conductor Iona Brown.
Baby names that sound like Iona are Oona, Ina, Iana, Ioana, Ione, Ionia, Ionya, Yona and Jona. Other similar baby names are Ilona, Nona, Tona, Dona, Idona, Iola, Lona, Mona, Rona and Zona.