Surname Hyytiäinen (Hyytiäinen 
, Хюютияйнен) , all over the world, is a rare cognomen. The surname Hyytiäinen is characteristic of Finland, where it is quite a rare surname, Sweden, where it is a rare surname, and the United States, where it is an extremely rare surname.
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| Hyytiäinen | Sweden, Finland, United States |
Hyytiaeinen, and Hyytiainen
| heikki ollinpoika hyytiäinen (b. 1610) |
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toivo hyytiäinen athletics competitor from Finland (1925-1978), FI (b. 1925) |
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| veikko hyytiäinen Finnish politician, FI (b. 1919) |
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| pentti hyytiäinen Finnish ice hockey player, FI (b. 1941) |
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| pekka hyytiäinen Finnish film director, FI (b. 1950) |
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| eija hyytiäinen cross-country skier, FI (b. 1961) |
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| seija hyytiäinen Finnish biathlete, FI (b. 1962) |
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| marko hyytiäinen Finnish javelin thrower, FI (b. 1966) |
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| janne hyytiäinen Finnish actor, FI (b. 1968) |
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| arja hyytiäinen Finnish photographer, FI (b. 1974) |
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| tiina hyytiäinen (b. 1968) |
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| kari hyytiäinen researcher |
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| heli k hyytiäinen researcher |
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| heidi k hyytiäinen researcher |
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| marko hyytiäinen researcher |
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Anu, Aini, Atte, Ahti, Aaro, Aapo, Kari, Pasi, Riku, Jani, Jami, Jari, Jasu, Jere, Juha, Juho, Tatu, Tomi, Topi, Tero, Timo, Timi, Asko, Arja, Arto, Anni, Ari, Ada, Aki, Kai, Lea, Nea, Esa, Ira, Yki, Mari, Nico, Mira, Mika, Miko, Miia, Sani, Sara, Sami, Satu, Sini, Anna, Anne, Mike, and Niko