Cognomen Uusna (Uusna 
) , globally, is a rare surname. The surname Uusna is characteristic of Northern Europe, particularly Estonia, where it is quite a rare surname, Finland, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Much less frequently, Uusna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uusna | United Kingdom, Finland, Estonia, India, United States |
| ain uusna Estonian mountaineer, EE (b. 1938) |
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| anne uusna EE (b. 1966) |
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| julia uusna researcher ORCID ID = 0000-0003-2204-8200 |
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