Most common surnames
Material updated 5/11/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,102 | 10,561 | 21,663 |
| 2. | Virtanen | 10,937 | 9,905 | 20,842 |
| 3. | Mäkinen | 9,832 | 9,514 | 19,346 |
| 4. | Nieminen | 9,843 | 9,362 | 19,205 |
| 5. | Mäkelä | 9,424 | 9,106 | 18,530 |
| 6. | Laine | 8,857 | 8,826 | 17,683 |
| 7. | Hämäläinen | 9,056 | 8,605 | 17,661 |
| 8. | Heikkinen | 8,575 | 8,455 | 17,030 |
| 9. | Koskinen | 8,446 | 8,134 | 16,580 |
| 10. | Järvinen | 7,888 | 7,602 | 15,490 |
