Surname Lacasi (Lacasi 
) , throughout the world, is a very rare last name. The cognomen Lacasi is characteristic of Latin America and the Caribbean, particularly Argentina, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Also, Lacasi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lacasi | Brazil, Spain, Philippines, Argentina, India |