Most common surnames
Material updated 6/8/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,099 | 10,563 | 21,662 |
| 2. | Virtanen | 10,931 | 9,891 | 20,822 |
| 3. | Mäkinen | 9,818 | 9,507 | 19,325 |
| 4. | Nieminen | 9,842 | 9,351 | 19,193 |
| 5. | Mäkelä | 9,421 | 9,104 | 18,525 |
| 6. | Laine | 8,849 | 8,826 | 17,675 |
| 7. | Hämäläinen | 9,053 | 8,593 | 17,646 |
| 8. | Heikkinen | 8,570 | 8,455 | 17,025 |
| 9. | Koskinen | 8,442 | 8,132 | 16,574 |
| 10. | Järvinen | 7,889 | 7,606 | 15,495 |
