Cognomen Tahvanainen (Tahvanainen 
) , all around the world, is quite a rare family name. The family name Tahvanainen is characteristic of Northern Europe, particularly Finland, where it is quite a common surname, Sweden, where it is a rare surname, and Estonia.
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| Tahvanainen | Germany, Sweden, Finland, United Kingdom, Estonia |
| edvin tahvanainen FI (b. 1897) |
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| vilho tahvanainen Finnish military personnel (1913-1992), FI (b. 1913) |
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sanna tahvanainen Finland Swedish writer, FI (b. 1975) |
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marja tahvanainen Finnish singer (1979-2018), FI (b. 1979) |
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timo tahvanainen Finnish association football player, FI (b. 1986) |
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| aini tahvanainen FI (b. 1929) |
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| sakari tahvanainen FI (b. 1936) |
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| juha tahvanainen Finnish writer, FI (b. 1953) |
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| keijo tahvanainen Finnish weightlifter, FI (b. 1959) |
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| mika-matti tahvanainen Finnish basketball player, FI (b. 1970) |
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| säde tahvanainen Finnish politician, FI (b. 1972) |
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| tuomas tahvanainen Finnish sports journalist, FI (b. 1976) |
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| joonas tahvanainen Finnish basketball player |
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| heidi tahvanainen Finnish association football player, FI |
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| roope tahvanainen FI |
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Mr, Arto, Aila, Aija, Kari, Kati, Piia, Rami, Riku, Jani, Jari, Joni, Jere, Juha, Juho, Jyri, Taru, Tatu, Tomi, Toni, Tero, Timo, Anja, Anni, Anne, Anna, Ms, Sã, Anu, Ari, Aki, Aku, Kht, Kia, Pia, Pã, Tiia, Ria, Nea, Ida, Mari, Miro, Mika, Miia, Sami, Satu, Sini, Suvi, Tim, and Niko