Most common surnames
Material updated 2/2/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,120 | 10,592 | 21,712 |
| 2. | Virtanen | 10,969 | 9,948 | 20,917 |
| 3. | Mäkinen | 9,863 | 9,541 | 19,404 |
| 4. | Nieminen | 9,869 | 9,380 | 19,249 |
| 5. | Mäkelä | 9,446 | 9,131 | 18,577 |
| 6. | Laine | 8,868 | 8,853 | 17,721 |
| 7. | Hämäläinen | 9,086 | 8,620 | 17,706 |
| 8. | Heikkinen | 8,587 | 8,463 | 17,050 |
| 9. | Koskinen | 8,458 | 8,154 | 16,612 |
| 10. | Järvinen | 7,904 | 7,623 | 15,527 |
