Family name Lannia (Lannia 
) , across the world, is a rare last name. The last name Lannia is habitual in Italy, where it is a very rare surname, Argentina, and Brazil, where it is an extremely rare surname. Much less frequently, Lannia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lannia | Argentina, Brazil, Peru, Italy, United States |