Cognomen Vainikainen (Vainikainen 
) , around the world, is a rare family name. The last name Vainikainen is habitual in Northern Europe, particularly Finland, where it is quite a common surname, Estonia, where it is a rare surname, and Sweden.
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| Vainikainen | South Africa, Sweden, Estonia, Finland |
Ваиникаинен, and Вайникайнен
| viljo vainikainen Finnish researcher, FI (b. 1901) |
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| veikko vainikainen FI (b. 1902) |
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| matti vainikainen Finnish painter (1925-2011), FI (b. 1925) |
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| katja vainikainen Finnish athletics competitor, FI (b. 1977) |
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| mari-pauliina vainikainen researcher |
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| nina vainikainen Finnish sprinter, FI (b. 1983) |
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| tiina vainikainen Finnish composer and lyricist, FI (b. 1990) |
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| jussi vainikainen FI |
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| simo vainikainen |
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| samu vainikainen Finnish pesäpallo player, FI (b. 1991) |
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| ville vainikainen Finnish ice hockey player, FI (b. 1994) |
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Mr, Pate, Pasi, Riku, Lari, Lisa, Jari, Joni, Joel, Jere, Juha, Juho, Jimi, Taru, Tomi, Toni, Topi, Tero, Timo, Timi, Tiia, Nico, Kati, Kari, Atri, Arto, Ms, Anu, Ari, Ada, Aki, Aku, Jon, Tim, Nea, Esa, Niko, Ira, Mari, Sara, Sari, Sami, Samu, Satu, Saku, Simo, Anna, Anne, Ida, and Nina