Most common surnames
Material updated 6/1/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,100 | 10,566 | 21,666 |
| 2. | Virtanen | 10,931 | 9,894 | 20,825 |
| 3. | Mäkinen | 9,821 | 9,508 | 19,329 |
| 4. | Nieminen | 9,842 | 9,358 | 19,200 |
| 5. | Mäkelä | 9,422 | 9,106 | 18,528 |
| 6. | Laine | 8,851 | 8,827 | 17,678 |
| 7. | Hämäläinen | 9,053 | 8,594 | 17,647 |
| 8. | Heikkinen | 8,571 | 8,454 | 17,025 |
| 9. | Koskinen | 8,443 | 8,136 | 16,579 |
| 10. | Järvinen | 7,888 | 7,606 | 15,494 |
