Lilli \l(il)-li\ as a girl's name is a variant of Lillian (Latin) and Lily (Latin), and the meaning of Lilli is "lily".

The baby name Lilli sounds like Lilly, Lillie, Lillia, Lili and Lilla. Other similar baby names are Ailli, Billi, Milli, Dilli, Jilli and Tilli.