Family name Nilton Leonel (Nilton Leonel 
) , in all the world, is an extremely rare last name. The cognomen Nilton Leonel is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Much more frequently, Nilton Leonel is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nilton Leonel | Ecuador, Chile, Peru |