Surname Sidoravicius (Sidoravicius 
) , in the world, is a very rare family name. The cognomen Sidoravicius is habitual in Venezuela, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Sidoravicius | Brazil, United States, United Kingdom, Venezuela |