Most common surnames
Material updated 3/2/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,118 | 10,573 | 21,691 |
| 2. | Virtanen | 10,957 | 9,935 | 20,892 |
| 3. | Mäkinen | 9,848 | 9,527 | 19,375 |
| 4. | Nieminen | 9,856 | 9,372 | 19,228 |
| 5. | Mäkelä | 9,439 | 9,119 | 18,558 |
| 6. | Laine | 8,863 | 8,847 | 17,710 |
| 7. | Hämäläinen | 9,073 | 8,622 | 17,695 |
| 8. | Heikkinen | 8,584 | 8,458 | 17,042 |
| 9. | Koskinen | 8,455 | 8,151 | 16,606 |
| 10. | Järvinen | 7,892 | 7,617 | 15,509 |
