Most common surnames
Material updated 5/18/2026| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,099 | 10,562 | 21,661 |
| 2. | Virtanen | 10,936 | 9,903 | 20,839 |
| 3. | Mäkinen | 9,832 | 9,515 | 19,347 |
| 4. | Nieminen | 9,841 | 9,361 | 19,202 |
| 5. | Mäkelä | 9,422 | 9,106 | 18,528 |
| 6. | Laine | 8,855 | 8,825 | 17,680 |
| 7. | Hämäläinen | 9,057 | 8,604 | 17,661 |
| 8. | Heikkinen | 8,575 | 8,456 | 17,031 |
| 9. | Koskinen | 8,446 | 8,133 | 16,579 |
| 10. | Järvinen | 7,885 | 7,602 | 15,487 |
