Cognomen Penttinen (Penttinen 
) , in the entire world, is quite a rare last name. The family name Penttinen is characteristic of Northern Europe, particularly Finland, where it is quite a common surname, Latvia, where it is a rare surname, and Estonia. Not in comparison with a country's population, this name is the most popular in Finland, Sweden, and the United States.
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| Penttinen | Canada, Sweden, Latvia, United States, Finland |
| juho penttinen FI (b. 1892) |
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| tauno penttinen Finnish poet (1918-1990), FI (b. 1918) |
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| aarne penttinen Finnish politician, FI (b. 1918) |
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| kari penttinen FI (b. 1918) |
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rory penttinen Finnish racing driver, FI (b. 1979) |
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| kirsti penttinen FI (b. 1924) |
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petteri penttinen Finnish volleyball player, FI (b. 1985) |
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| raimo penttinen FI (b. 1931) |
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| teemu penttinen (b. 1935) |
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| tarja penttinen Finnish pianist, FI (b. 1949) |
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minttu penttinen FI (b. 1989) |
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| antti penttinen Finnish statistician, FI (b. 1951) |
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| markku penttinen FI (b. 1944) |
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| jarkko penttinen chess player (b. 1972) |
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| heli penttinen (b. 1963) |
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