Sylvianne \syl-vianne, sylvi(an)-ne\ as a girl's name is a variant of Sylvia (Latin), and the meaning of Sylvianne is "woods, forest".
The baby name Sylvianne sounds like Silvianne, Sylvine, Sylviana and Sylvanna. Other similar baby names are Sallianne, Calvinne, Silvanna, Sylvie, Syvonne, Sylvonna, Sylvina, Sylvana, Silviana and Silvaine.