Last name Kaasalainen (Kaasalainen 
) , all around the world, is a rare family name. The last name Kaasalainen is characteristic of Northern Europe, particularly Finland, where it is quite a common surname, Estonia, where it is a rare surname, and Norway, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Finland, Canada, and Estonia. Very seldom, Kaasalainen is the forename as well as the last name.
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| Kaasalainen | United Kingdom, Estonia, China, Finland, Canada |
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väinö kaasalainen Finnish politician (1902-1955), FI (b. 1902) |
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nestori kaasalainen Finnish politician, FI (b. 1915) |
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harri kaasalainen Finnish poet (1920-1967), FI (b. 1920) |
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| antti kaasalainen Finnish politician (1875-1935), FI (b. 1875) |
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viljami kaasalainen Finnish sprinter, FI (b. 1995) |
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| mikko kaasalainen Finnish mathematician, FI (b. 1965) |
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| jari kaasalainen Finnish association football player, FI (b. 1968) |
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| ulla kaasalainen Finnish lichenologist |
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| touko kaasalainen researcher |
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| kai kaasalainen Finnish business executive, FI |
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| sanna kaasalainen researcher ORCID ID = 0000-0001-6628-418X |
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| sharon kaasalainen researcher |
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| karoliina kaasalainen researcher (ORCID 0000-0001-7944-3944), FI (b. 1988) |
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| jouni kaasalainen FI |
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| pekka kaasalainen FI |
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Mr, Juho, Timo, Niko, Ella, Emmi, Eija, Eero, Eetu, Vili, Olli, Ulla, Marko, Marjo, Marja, Matti, Mervi, Meemi, Minna, Mikko, Saimi, Saara, Juha, Saana, John, Jani, Ms, Anu, Ari, Aku, Kai, Pã, Nea, Esa, Eve, Mari, Mika, Sara, Sari, Sami, Anne, Arvo, Kare, Kati, Piia, Rosa, Lumi, Jari, and Sirpa