Cognomen Heinonen (Heinonen 
, Хейнонен 
) , in all the world, is a common family name. The surname Heinonen is habitual in Northern Europe, particularly Finland, where it is a common surname, Estonia, where it is quite a common surname, and Latvia, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Finland, the United States, and Sweden.
| VARIANT | COUNTRY |
|---|---|
| Heinonen | Latvia, Sweden, Estonia, United States, Finland |
| Хейнонен | Ukraine, Russia, Kazakhstan |
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vihtori heinonen FI (b. 1891) |
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vappu heinonen Finnish politician, FI (b. 1905) |
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eino heinonen finnish photographer (b. 1905) |
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reino heinonen FI (b. 1898) |
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erkki heinonen Finnish chess player, FI (b. 1922) |
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| kaarlo heinonen Finnish politician, FI (b. 1878) |
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| lyyli heinonen Finnish writer and political activist (1889-1950), FI (b. 1889) |
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| eino heinonen finnish businessman, FI (b. 1893) |
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olli heinonen Finnish chemist, FI (b. 1946) |
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| ilmari heinonen Finnish artist, FI (b. 1897) |
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| l. t. heinonen (b. 1887) |
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eero heinonen Finnish pianist, FI (b. 1950) |
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| johannes heinonen FI (b. 1892) |
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| eino heinonen finnish journalist, FI (b. 1904) |
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| frans heinonen FI (b. 1894) |
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