Last name Siitonen (Siitonen 
) , globally, is quite a rare cognomen. The surname Siitonen is habitual in Northern Europe, particularly Finland, where it is quite a common surname, Estonia, where it is a rare surname, and Sweden. Not in comparison with a country's population, this name is the most popular in Finland, Sweden, and the United States.
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| Siitonen | Sweden, Finland, Norway, United States, Estonia |
| konstantin siitonen Finnish priest (1851-1925), FI (b. 1851) |
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eva-riitta siitonen Finnish politician, FI (b. 1940) |
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hannu siitonen athletics competitor, FI (b. 1949) |
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| tuomo siitonen Finnish architect, FI (b. 1946) |
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| kaisa siitonen Finnish middle-distance runner, FI (b. 1960) |
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| simo siitonen Finnish military physician, FI (b. 1961) |
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| ilkka siitonen Finnish association football player, FI (b. 1965) |
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| hanna-riikka siitonen Finnish actress and singer, FI (b. 1970) |
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| reijo siitonen (b. 1961) |
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| marko siitonen Finnish researcher, FI (b. 1977) |
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| riikka siitonen researcher ORCID ID = 0000-0003-0937-356X |
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| juha h siitonen researcher |
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| martta siitonen Finnish nurse |
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| maunu siitonen Finnish architect, FI |
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| tero siitonen Finnish guitarist, FI |
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Mr, Anni, Anja, Arto, Arja, Asko, Aino, Aimo, Aila, Aija, Auli, Kari, Panu, Paul, Pasi, Roni, Lari, Jani, Jari, John, Joni, Jori, Anne, Anna, Alpo, Alex, Ms, Sue, Anu, Ari, Aki, Aku, Kht, Pia, Lea, Esa, Joel, Mari, Mira, Miro, Mika, Sari, Sami, Satu, Sini, Simo, Suvi, Sony, Mats, and Jere