Family name Llerga (Llerga 
, Ligula 
) , all over the world, is a very rare cognomen. The surname Llerga is characteristic of South Africa, where it is a very rare surname, Spain, and Nigeria, where it is an extremely rare surname. Much less frequently, Llerga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Llerga | Spain |
| Ligula | Nigeria, South Africa, Philippines, Spain |