Surname Syväoja (Syväoja 
) , around the world, is a very rare last name. The family name Syväoja is habitual in Northern Europe, particularly Finland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Syväoja | Finland |
| juhani syväoja Finnish biologist and professor, FI (b. 1951) |
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| sakari syväoja Finnish sprinter, FI (b. 1963) |
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| heidi j syväoja researcher, FI |
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| sakari syväoja researcher |
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| pentti syväoja Finnish architect, FI |
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| tomi syväoja FI |
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| erkki syväoja FI |
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| niilo syväoja Finnish film actor, FI (b. 1991) |
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