Most common surnames
Material updated 7/14/2025| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,180 | 10,638 | 21,818 |
| 2. | Virtanen | 11,040 | 10,015 | 21,055 |
| 3. | Mäkinen | 9,921 | 9,606 | 19,527 |
| 4. | Nieminen | 9,917 | 9,424 | 19,341 |
| 5. | Mäkelä | 9,450 | 9,161 | 18,611 |
| 6. | Hämäläinen | 9,114 | 8,662 | 17,776 |
| 7. | Laine | 8,906 | 8,867 | 17,773 |
| 8. | Heikkinen | 8,642 | 8,496 | 17,138 |
| 9. | Koskinen | 8,485 | 8,184 | 16,669 |
| 10. | Järvinen | 7,938 | 7,670 | 15,608 |
