Most common surnames
Material updated 6/22/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,095 | 10,565 | 21,660 |
| 2. | Virtanen | 10,931 | 9,883 | 20,814 |
| 3. | Mäkinen | 9,812 | 9,502 | 19,314 |
| 4. | Nieminen | 9,841 | 9,346 | 19,187 |
| 5. | Mäkelä | 9,413 | 9,108 | 18,521 |
| 6. | Laine | 8,845 | 8,823 | 17,668 |
| 7. | Hämäläinen | 9,053 | 8,590 | 17,643 |
| 8. | Heikkinen | 8,570 | 8,453 | 17,023 |
| 9. | Koskinen | 8,440 | 8,127 | 16,567 |
| 10. | Järvinen | 7,883 | 7,602 | 15,485 |
