Family name Sinior (Sinior 
) , in the entire world, is a rare surname. The cognomen Sinior is habitual in Poland, where it is a rare surname, Algeria, and Morocco. Also, Sinior is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sinior | Egypt, Myanmar, Poland, Algeria, Morocco |
| jakub sinior Polish footballer, PL |
|