Throughout the world, Karjalainen (Karjalainen 
, Карьялайнен 
) is a very rare masculine forename. The forename Karjalainen is characteristic of Eastern Asia, particularly China, where it is an extremely rare boy's name. Predominantly, Karjalainen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Karjalainen | Australia, Sweden, Finland, United States, Estonia |
| Карьялайнен | Ukraine, Russia |
Карйалаинен, and Карялаинен
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sampo karjalainen Finnish computer scientist, FI (b. 1977) |
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| tapio karjalainen Finnish politician, FI (b. 1939) |
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| petri karjalainen Finnish ice hockey player, FI (b. 1956) |
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| pauli tapani karjalainen (b. 1953) |
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| vesa karjalainen Finnish ice hockey player, FI (b. 1966) |
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| hanna karjalainen Finnish actress, FI (b. 1980) |
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| pasi p karjalainen researcher |
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| essi karjalainen researcher (ORCID 0000-0002-0760-4275) |
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| petri karjalainen FI |
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| petri karjalainen FI (b. 1980) |
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| pasi a karjalainen researcher |
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