The name could either be from the Italian and Galician form of Leah or it could be a German contraction of Rosalia or Julia or any name that ends in -lia.
Currently, it is the 34th most popular female name in Germany, (2011). Her rankings in other countries are as follows:
- #18 (German-speaking Switzerland, 2010)
- #59 (Slovenia, 2010)
- #299 (France, 2009)
- # 356 (United States, 2010)
The name is borne by German Opera Soprano, Lia Hanus.