Cognomen Kahma (Kahma 
) , all over the world, is a rare family name. The last name Kahma is characteristic of Finland, where it is quite a rare surname, Sweden, where it is a rare surname, and India, where it is an extremely rare surname. Also, Kahma is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Kahma | Philippines, Finland, Sweden, India, Indonesia |
| liina kahma FI (b. 1840) |
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| uuno kahma Finnish translator, FI (b. 1872) |
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| jaakko kahma FI (b. 1886) |
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| aarno kahma Finnish geologist, FI (b. 1914) |
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| markus kahma Finnish decathlete, FI (b. 1932) |
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| pentti kahma Finnish discus thrower, FI (b. 1943) |
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| kimmo kahma Finnish oceanographer, research professor of physical oceanography (emeritus; Finnish Marine Research Institute, which later became part of Finnish Meteorological Institute), FI (b. 1947) |
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| mika kahma FI (b. 1966) |
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| nina kahma researcher |
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| helinä kahma researcher, ORCID id # 0000-0003-1972-7368 |
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