Last name Лиллиа (Lillia 
, Лиллиа 
) , in the world, is a rare family name. The last name Лиллиа is habitual in Finland, where it is quite a rare surname, Nicaragua, where it is a rare surname, and Poland. Not in comparison with a country's population, it is commonest in Italy, Argentina, and Poland. More frequently, Лиллиа is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lillia | Italy, Brazil, United States, Philippines, Algeria |
| Лиллиа | Russia |