Surname Sidaravicius (Sidaravicius 
) , worldwide, is a rare cognomen. The family name Sidaravicius is habitual in Lithuania, where it is quite a rare surname, Latvia, where it is a rare surname, and Poland, where it is a very rare surname. Much less frequently, Sidaravicius is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sidaravicius | Lithuania, United States, Latvia, Poland, Brazil |