Most common surnames
Material updated 1/5/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,136 | 10,597 | 21,733 |
| 2. | Virtanen | 10,978 | 9,963 | 20,941 |
| 3. | Mäkinen | 9,869 | 9,552 | 19,421 |
| 4. | Nieminen | 9,875 | 9,388 | 19,263 |
| 5. | Mäkelä | 9,452 | 9,136 | 18,588 |
| 6. | Laine | 8,879 | 8,856 | 17,735 |
| 7. | Hämäläinen | 9,091 | 8,628 | 17,719 |
| 8. | Heikkinen | 8,593 | 8,470 | 17,063 |
| 9. | Koskinen | 8,466 | 8,158 | 16,624 |
| 10. | Järvinen | 7,909 | 7,633 | 15,542 |
