Surname Siletta (Siletta 
) , globally, is a very rare family name. The surname Siletta is habitual in the United States, where it is an extremely rare surname, Germany, and Canada. Not in comparison with a country's population, it is the most numerous in the United States, Brazil, and Germany. Very seldom, Siletta is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siletta | Germany, Canada, Brazil, United States |