Cognomen Hamalainen (Hamalainen 
, Хямяляйнен 
, Хамалайнен ) , around the world, is a common last name. The family name Hamalainen is habitual in Finland, where it is a common surname, Estonia, where it is quite a common surname, and Malta, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in Finland, Estonia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Hamalainen | Sweden, Estonia, Finland, United States, Canada |
| Хямяляйнен | Russia, Ukraine |
| Хамалайнен | Ukraine |
Hämäläinen, and Хамалаинен
| harry hamalainen Australian rugby union and rugby league footballer, AU (b. 1904) |
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brian hamalainen Danish footballer, DK (b. 1989) |
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| liisa hamalainen Finnish basketball player, FI (b. 1962) |
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| jarmo hamalainen researcher ORCID ID = 0000-0001-7188-8148, FI |
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| santiago machin hamalainen researcher |
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| carlo hamalainen Ph.D. University of Queensland 2007 |
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| matti aarne hamalainen Ph.D. University of Texas at Austin 1996 |
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