Family name Sillakivi (Sillakivi 
) , all over the world, is a very rare cognomen. The cognomen Sillakivi is habitual in Northern Europe, particularly Estonia, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sillakivi | Estonia |
| karl sillakivi EE (b. 1911) |
|
|
| toomas sillakivi researcher ORCID ID = 0000-0003-3761-384X |
|