Susanna \s(u)-sanna, sus(an)-na\ as a girl's name is a variant of Susan (Hebrew), Susannah (Hebrew) and Suzanne (French), and the meaning of Susanna is "lily". See also Sanna, Shoshana and Zanna.
The baby name Susanna sounds like Sosanna, Suzanna, Susanne, Susann, Susana and Suesanna. Other similar baby names are Susanka and Sueanna.