Most common surnames
Material updated 12/15/2025| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,143 | 10,602 | 21,745 |
| 2. | Virtanen | 10,983 | 9,972 | 20,955 |
| 3. | Mäkinen | 9,874 | 9,561 | 19,435 |
| 4. | Nieminen | 9,881 | 9,388 | 19,269 |
| 5. | Mäkelä | 9,453 | 9,143 | 18,596 |
| 6. | Laine | 8,882 | 8,856 | 17,738 |
| 7. | Hämäläinen | 9,093 | 8,637 | 17,730 |
| 8. | Heikkinen | 8,598 | 8,476 | 17,074 |
| 9. | Koskinen | 8,467 | 8,158 | 16,625 |
| 10. | Järvinen | 7,917 | 7,640 | 15,557 |
