Surname Ojanen (Ojanen 
, Оянен 
) , throughout the world, is quite a rare cognomen. The last name Ojanen is habitual in Northern Europe, particularly Finland, where it is quite a common surname, Estonia, where it is a rare surname, and Sweden. Measured by absolute frequency, this name is the most popular in Finland, the United States, and Sweden.
| VARIANT | COUNTRY |
|---|---|
| Ojanen | Germany, Estonia, United States, Sweden, Finland |
| Оянен | Russia |
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kaarle ojanen Finnish politician, FI (b. 1851) |
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| ville ojanen Finnish journalist (1893-1938), FI (b. 1893) |
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| feliks ojanen Finnish artist (1898-1970), FI (b. 1898) |
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eero ojanen Finnish philosopher, FI (b. 1954) |
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janne ojanen ice hockey player, FI (b. 1968) |
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| kaarle ojanen chess player, FI (b. 1918) |
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| eino ojanen Finnish basketball player and pesäpallo player (1924-2010), FI (b. 1924) |
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| sinikka ojanen Finnish professor, FI (b. 1933) |
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| risto ojanen FI (b. 1927) |
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| reijo ojanen Finnish ice hockey player, FI (b. 1939) |
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| simo ojanen Finnish author and screenwriter, FI (b. 1940) |
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| aimo ojanen Finnish police officer and writer (b. 1941) |
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| reijo ojanen FI (b. 1931) |
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| eero ojanen Finnish pianist, FI (b. 1943) |
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| markku ojanen Finnish psychologist, FI (b. 1944) |
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Mr, Miko, Miia, Sara, Sari, Sami, Satu, Sini, Simo, Suvi, Alex, Alan, Anna, Anne, Anni, Anja, Arto, Asko, Aino, Aila, Aura, Atte, Mika, Mira, Meri, Matt, Ms, Mia, Anu, Ari, Aki, Kia, Pat, Pia, Rea, Dan, Ahti, Lia, Tua, Esa, Eva, Htm, Ida, Mari, Marc, Mary, Mark, Manu, Lou, and Kari