Most common surnames
Material updated 6/15/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,097 | 10,565 | 21,662 |
| 2. | Virtanen | 10,930 | 9,888 | 20,818 |
| 3. | Mäkinen | 9,818 | 9,506 | 19,324 |
| 4. | Nieminen | 9,841 | 9,348 | 19,189 |
| 5. | Mäkelä | 9,415 | 9,108 | 18,523 |
| 6. | Laine | 8,846 | 8,826 | 17,672 |
| 7. | Hämäläinen | 9,053 | 8,592 | 17,645 |
| 8. | Heikkinen | 8,572 | 8,451 | 17,023 |
| 9. | Koskinen | 8,444 | 8,129 | 16,573 |
| 10. | Järvinen | 7,885 | 7,604 | 15,489 |
