Most common surnames
Material updated 5/25/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,104 | 10,569 | 21,673 |
| 2. | Virtanen | 10,935 | 9,902 | 20,837 |
| 3. | Mäkinen | 9,826 | 9,513 | 19,339 |
| 4. | Nieminen | 9,842 | 9,359 | 19,201 |
| 5. | Mäkelä | 9,424 | 9,106 | 18,530 |
| 6. | Laine | 8,854 | 8,829 | 17,683 |
| 7. | Hämäläinen | 9,057 | 8,601 | 17,658 |
| 8. | Heikkinen | 8,573 | 8,456 | 17,029 |
| 9. | Koskinen | 8,445 | 8,135 | 16,580 |
| 10. | Järvinen | 7,887 | 7,606 | 15,493 |
