Most common surnames
Material updated 11/2/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,081 | 10,539 | 21,620 |
| 2. | Virtanen | 10,895 | 9,853 | 20,748 |
| 3. | Mäkinen | 9,779 | 9,477 | 19,256 |
| 4. | Nieminen | 9,806 | 9,287 | 19,093 |
| 5. | Mäkelä | 9,393 | 9,077 | 18,470 |
| 6. | Laine | 8,817 | 8,796 | 17,613 |
| 7. | Hämäläinen | 9,030 | 8,558 | 17,588 |
| 8. | Heikkinen | 8,559 | 8,440 | 16,999 |
| 9. | Koskinen | 8,406 | 8,094 | 16,500 |
| 10. | Järvinen | 7,854 | 7,559 | 15,413 |