Sibylla \s(i)-bylla, sib(yl)-la\ as a girl's name is a variant of Sibyl (Greek) and Sybil (Greek), and the meaning of Sibylla is "prophetess, oracle".
The baby name Sibylla sounds like Sibyll, Sibilla, Sibella and Sabylla. Other similar baby names are Sirilla, Sabella, Sybilla, Sybella, Sibelle, Sibell and Sabilla.