Most common surnames
Material updated 3/30/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,112 | 10,566 | 21,678 |
| 2. | Virtanen | 10,946 | 9,916 | 20,862 |
| 3. | Mäkinen | 9,838 | 9,524 | 19,362 |
| 4. | Nieminen | 9,855 | 9,368 | 19,223 |
| 5. | Mäkelä | 9,434 | 9,113 | 18,547 |
| 6. | Laine | 8,859 | 8,840 | 17,699 |
| 7. | Hämäläinen | 9,072 | 8,617 | 17,689 |
| 8. | Heikkinen | 8,583 | 8,458 | 17,041 |
| 9. | Koskinen | 8,449 | 8,143 | 16,592 |
| 10. | Järvinen | 7,894 | 7,606 | 15,500 |
