Surname Sinisalu (Sinisalu 
) , throughout the world, is a rare cognomen. The family name Sinisalu is habitual in Northern Europe, particularly Estonia, where it is quite a common surname.
| VARIANT | COUNTRY |
|---|---|
| Sinisalu | Estonia |
| leonid sinisalu (b. 1920) |
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| väino sinisalu (b. 1940) |
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| arnold sinisalu Estonian police officer, lawyer, EE (b. 1970) |
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