Cilla \ci(l)-la\ as a girl's name is a variant of Cecilia (Latin, Old Welsh) and Priscilla (Latin), and the meaning of Cilla is "blind; sixth; ancient, venerable".
The baby name Cilla sounds like Cilly, Cilia and Zilla. Other similar baby names are Dilla, Willa, Billa, Calla, Milla, Cilka, Csilla, Lilla and Rilla.