Family name Ihalainen (Ihalainen 
, Ихалайнен 
) , around the world, is quite a rare cognomen. The last name Ihalainen is habitual in Northern Europe, particularly Finland, where it is quite a common surname, Estonia, where it is a rare surname, and Sweden. Not in comparison with a country's population, the name is most common in Finland, Sweden, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Ihalainen | Sweden, China, Poland, Finland, Australia |
| Ихалайнен | Russia |
| juhani ihalainen Finnish poet, FI (b. 1799) |
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lauri ihalainen Finnish politician, FI (b. 1947) |
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| veikko ihalainen FI (b. 1892) |
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j. k. ihalainen Finland writer, FI (b. 1957) |
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| kalevi ihalainen Finnish ice hockey player, basketball player and pesäpallo player (1913-1995), FI (b. 1913) |
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| eino ihalainen FI (b. 1923) |
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| ossi ihalainen 1941--1993 (b. 1941) |
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| ilmari ihalainen Finnish writer, FI (b. 1946) |
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| maunu ihalainen FI (b. 1937) |
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| arja-riitta ihalainen Finnish artist (b. 1953) |
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| kari ihalainen Finnish javelin thrower, FI (b. 1954) |
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| erkki ihalainen FI (b. 1950) |
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| marianne ihalainen Finnish ice hockey player, FI (b. 1967) |
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| janne ihalainen researcher ORCID ID = 0000-0002-8741-1587, FI (b. 1973) |
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| tiina ihalainen researcher |
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Mr, Aino, Aatu, Kari, Kati, Panu, Pasi, Rita, Riku, Jani, Jari, Joni, Jusa, Juha, Juho, Taru, Tomi, Toni, Tero, Timo, Niko, Nina, Asko, Neea, Anni, Anna, Ms, Mia, Anu, Ari, Aki, Kim, Pia, Esa, Mari, Mila, Mira, Mika, Miia, Sara, Sari, Sami, Samu, Satu, Saku, Saul, Suvi, Anne, and Elin