Most common surnames
Material updated 6/29/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,095 | 10,563 | 21,658 |
| 2. | Virtanen | 10,923 | 9,879 | 20,802 |
| 3. | Mäkinen | 9,810 | 9,499 | 19,309 |
| 4. | Nieminen | 9,840 | 9,344 | 19,184 |
| 5. | Mäkelä | 9,409 | 9,107 | 18,516 |
| 6. | Laine | 8,844 | 8,817 | 17,661 |
| 7. | Hämäläinen | 9,050 | 8,589 | 17,639 |
| 8. | Heikkinen | 8,570 | 8,448 | 17,018 |
| 9. | Koskinen | 8,436 | 8,128 | 16,564 |
| 10. | Järvinen | 7,880 | 7,598 | 15,478 |
