Most common surnames
Material updated 11/17/2025| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,149 | 10,602 | 21,751 |
| 2. | Virtanen | 10,992 | 9,986 | 20,978 |
| 3. | Mäkinen | 9,889 | 9,574 | 19,463 |
| 4. | Nieminen | 9,892 | 9,399 | 19,291 |
| 5. | Mäkelä | 9,450 | 9,144 | 18,594 |
| 6. | Laine | 8,888 | 8,859 | 17,747 |
| 7. | Hämäläinen | 9,096 | 8,640 | 17,736 |
| 8. | Heikkinen | 8,603 | 8,475 | 17,078 |
| 9. | Koskinen | 8,468 | 8,166 | 16,634 |
| 10. | Järvinen | 7,924 | 7,649 | 15,573 |
