Meaning and name origin
Lillianne \l(il)-lianne, lill(ian)-ne\ as a girl's name is of Latin origin, and the meaning of Lillianne is "lily". Lillianne is a variant of Lillian (Latin): flower name. Also a variant of Lily (Latin); flower name: the lily is a symbol of innocence and purity as well as beauty.
Lillianne is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the girl name Lillianne and its variant forms. Popular variation forms ranked in the Top 1000/100 are Lillian (#25), Lily (#27), Lilian (#506) and Lilyan. (2014 statistics).