Lilla \l(il)-la\ as a girl's name is a variant of Lily (Latin). See for meaning of Lilla.
The baby name Lilla sounds like Lila, Lalla, Lilia, Lilly, Lillia, Lilli and Lolla. Other similar baby names are Dilla, Willa, Billa, Milla, Cilla, Lillas, Rilla and Zilla.