Cognomen Siamionava (Siamionava 
) , in all the world, is a very rare surname. The last name Siamionava is habitual in Belarus, where it is a rare surname, Latvia, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Siamionava | Latvia, United States, Belarus |
| anastasiya siamionava Belarusian rower, BY (b. 1996) |
|