Surname Olarti (Olarti 
) , all around the world, is a very rare family name. The family name Olarti is habitual in Philippines, where it is an extremely rare surname, Peru, and the United States. In absolute terms, it is the most numerous in the United States, Philippines, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Olarti | Brazil, United States, Peru, Philippines |