Around the world, Ilustrisimo (Ilustrisimo 
) is a very rare unisex first name. The forename Ilustrisimo is habitual in South-eastern Asia, particularly Philippines, where it is a very rare unisex name. Much more frequently, Ilustrisimo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ilustrisimo | Philippines, United Arab Emirates, Saudi Arabia, United States, Qatar |