Most common surnames
Material updated 11/9/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,080 | 10,539 | 21,619 |
| 2. | Virtanen | 10,893 | 9,847 | 20,740 |
| 3. | Mäkinen | 9,776 | 9,476 | 19,252 |
| 4. | Nieminen | 9,807 | 9,287 | 19,094 |
| 5. | Mäkelä | 9,392 | 9,075 | 18,467 |
| 6. | Laine | 8,815 | 8,794 | 17,609 |
| 7. | Hämäläinen | 9,029 | 8,556 | 17,585 |
| 8. | Heikkinen | 8,559 | 8,436 | 16,995 |
| 9. | Koskinen | 8,404 | 8,094 | 16,498 |
| 10. | Järvinen | 7,854 | 7,555 | 15,409 |