Last name Синиярв (Синиярв 
, Sinijärv 
) , around the globe, is a very rare family name. The cognomen Синиярв is habitual in Estonia, where it is quite a rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Синиярв | Russia |
| Sinijärv | Estonia |
|
синиярв, карл мартин Estonian poet, EE (b. 1971) |
|