Most common surnames
Material updated 2/16/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,115 | 10,579 | 21,694 |
| 2. | Virtanen | 10,962 | 9,940 | 20,902 |
| 3. | Mäkinen | 9,857 | 9,531 | 19,388 |
| 4. | Nieminen | 9,863 | 9,378 | 19,241 |
| 5. | Mäkelä | 9,440 | 9,124 | 18,564 |
| 6. | Laine | 8,864 | 8,853 | 17,717 |
| 7. | Hämäläinen | 9,076 | 8,623 | 17,699 |
| 8. | Heikkinen | 8,587 | 8,463 | 17,050 |
| 9. | Koskinen | 8,457 | 8,154 | 16,611 |
| 10. | Järvinen | 7,895 | 7,623 | 15,518 |
