Family name Leinonen (Leinonen 
, Лейнонен 
) , around the world, is quite a common last name. The cognomen Leinonen is characteristic of Northern Europe, particularly Finland, where it is a common surname, Estonia, where it is quite a rare surname, and Sweden. Not in comparison with a country's population, this name is the most popular in Finland, the United States, and Sweden.
| VARIANT | COUNTRY |
|---|---|
| Leinonen | Sweden, Norway, Finland, United States, Hong Kong |
| Лейнонен | Ukraine, Belarus, Russia |
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mikko leinonen Finnish politician (1874-1931), FI (b. 1874) |
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artturi leinonen Finnish teacher, journalist, politician and writer, FI (b. 1888) |
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| alexander leinonen Finnish journalist, FI (b. 1847) |
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kaarlo johannes leinonen Finnish priest, FI (b. 1916) |
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| olga leinonen Finnish politician, FI (b. 1877) |
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| paavo leinonen Finnish painter (1894-1964), FI (b. 1894) |
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| anton leinonen (b. 1893) |
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mikko leinonen Finnish ice hockey player, FI (b. 1955) |
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| kaarlo leinonen Finnish general, FI (b. 1914) |
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marjo leinonen Finnish singer, FI (b. 1966) |
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teemu leinonen Finnish professor, FI (b. 1969) |
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anne leinonen Finnish writer, FI (b. 1973) |
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| arvo leinonen FI (b. 1913) |
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| juhani leinonen Finnish military personnel (1924-2016), FI (b. 1924) |
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ville leinonen Finnish singer, FI (b. 1975) |
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