Most common surnames
Material updated 2/23/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,114 | 10,574 | 21,688 |
| 2. | Virtanen | 10,957 | 9,936 | 20,893 |
| 3. | Mäkinen | 9,852 | 9,535 | 19,387 |
| 4. | Nieminen | 9,858 | 9,372 | 19,230 |
| 5. | Mäkelä | 9,439 | 9,120 | 18,559 |
| 6. | Laine | 8,861 | 8,850 | 17,711 |
| 7. | Hämäläinen | 9,074 | 8,623 | 17,697 |
| 8. | Heikkinen | 8,585 | 8,462 | 17,047 |
| 9. | Koskinen | 8,455 | 8,153 | 16,608 |
| 10. | Järvinen | 7,892 | 7,620 | 15,512 |
