Most common surnames
Material updated 11/3/2025| Rank | Surname | Men | Women | Total |
|---|
| 1. | Korhonen | 11,152 | 10,606 | 21,758 |
| 2. | Virtanen | 10,999 | 9,993 | 20,992 |
| 3. | Mäkinen | 9,890 | 9,577 | 19,467 |
| 4. | Nieminen | 9,896 | 9,405 | 19,301 |
| 5. | Mäkelä | 9,451 | 9,145 | 18,596 |
| 6. | Laine | 8,887 | 8,855 | 17,742 |
| 7. | Hämäläinen | 9,098 | 8,636 | 17,734 |
| 8. | Heikkinen | 8,604 | 8,481 | 17,085 |
| 9. | Koskinen | 8,473 | 8,169 | 16,642 |
| 10. | Järvinen | 7,927 | 7,652 | 15,579 |
