Surname Pernaa (Pernaa 
) , all around the world, is a rare cognomen. The last name Pernaa is habitual in Finland, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pernaa | Finland, United States |
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ville pernaa Finnish journalist, FI (b. 1974) |
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| veli yrjö pernaa Finnish colonel, teacher and writer, FI (b. 1934) |
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| jussi pernaa Finnish ice hockey defenceman, FI (b. 1983) |
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