Lillie is a spelling of Lily and means "lily", the flower whose name comes from the Latin lilium and which has symbolized purity since the Middle Ages; it also served as a nickname for Elizabeth and Lillian. The actress Lillie Langtry, a famous beauty of the 1880s, made this spelling fashionable in the Victorian era. In the United States Lillie was number 760 in 2000, peaked at 426 in 2009 and ranks 676 in 2025.