Cognomen Koski-Vähälä (Koski-Vähälä 
) , all around the world, is a very rare surname. The surname Koski-Vähälä is habitual in Northern Europe, particularly Finland, where it is a rare surname. Parts of the name also exists independently as a last name Koski, and a last name Vähälä.
| VARIANT | COUNTRY |
|---|---|
| Koski-Vähälä | Finland |
| sari koski-vähälä Finnish artist, FI (b. 1968) |
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| jarkko koski-vähälä Finnish javelin thrower, FI (b. 1978) |
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| jorma koski-vähälä FI |
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