Family name Koljonen (Koljonen 
) , worldwide, is quite a rare last name. The surname Koljonen is habitual in Northern Europe, particularly Finland, where it is quite a common surname, Estonia, where it is quite a rare surname, and Sweden, where it is a rare surname. In absolute terms, the name is most common in Finland, the United States, and Sweden.
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| Koljonen | Sweden, Finland, United States, Germany, Estonia |
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toivo koljonen Finnish murderer (1912-1943), FI (b. 1912) |
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niilo koljonen Finnish social scientist, FI (b. 1927) |
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| vilho koljonen Finnish writer (1910-2000), FI (b. 1910) |
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johanna koljonen Swedish-speaking journalist from Finland, FI (b. 1978) |
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saana koljonen Finnish volleyball player, FI (b. 1988) |
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| vesa-pekka koljonen Finnish journalist, FI (b. 1942) |
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kalle koljonen badminton player, FI (b. 1994) |
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| veli koljonen Finnish painter, FI (b. 1951) |
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| marja-liisa koljonen researcher |
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| ville koljonen researcher (ORCID 0000-0002-1132-6087) |
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| olli-pekka koljonen FI |
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| toivo petter koljonen FI |
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| saija koljonen |
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| mikko koljonen |
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| kari koljonen FI |
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Mr, Satu, Simo, Siru, Suna, Suvi, Sean, Anna, Anne, Anni, Arto, Aila, Aura, Auli, Atso, Cory, Benn, Beth, Kari, Karo, Kati, Kate, Sami, Sari, Sara, Miia, Ms, Kj, Mia, Ali, Anu, Ari, Pia, Ron, Roy, Lea, Kirk, Jed, Esa, Eva, Ira, Mari, Mary, Mark, Matt, Miro, Mika, Miko, Tim, and Kiia