Most common surnames
Material updated 3/16/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,114 | 10,567 | 21,681 |
| 2. | Virtanen | 10,953 | 9,928 | 20,881 |
| 3. | Mäkinen | 9,842 | 9,526 | 19,368 |
| 4. | Nieminen | 9,854 | 9,369 | 19,223 |
| 5. | Mäkelä | 9,438 | 9,116 | 18,554 |
| 6. | Laine | 8,862 | 8,840 | 17,702 |
| 7. | Hämäläinen | 9,072 | 8,616 | 17,688 |
| 8. | Heikkinen | 8,584 | 8,457 | 17,041 |
| 9. | Koskinen | 8,449 | 8,146 | 16,595 |
| 10. | Järvinen | 7,894 | 7,614 | 15,508 |
