Cognomen Puolakainen (Puolakainen 
) , in the entire world, is a very rare family name. The family name Puolakainen is characteristic of Northern Europe, particularly Estonia, where it is quite a rare surname, and Finland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Puolakainen | Finland, Estonia |
| tiina puolakainen Estonian linguist and computer scientist, EE (b. 1973) |
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| martti puolakainen Finnish footballer, FI (b. 1994) |
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