Province·Black Sea Region·Code 14
TÜİK · ADNKS 2025The most common surnames in Bolu
As in Türkiye as a whole, the most common surname in Bolu is Yılmaz: 6,106 people in 2025. Öztürk is second with 4,374. Yılmaz has led Bolu every year since 2018.1
- First place
- Yılmaz
- Surnames listed
- 301
The 30 most common surnames in Bolu, 2025
| Rank | Surname | People | Per 1,000 | National rank |
|---|---|---|---|---|
| 01 | Yılmaz | 6,106 | 18.7 | 1 |
| 02 | Öztürk | 4,374 | 13.4 | 8 |
| 03 | Özdemir | 3,703 | 11.3 | 10 |
| 04 | Demir | 2,715 | 8.3 | 3 |
| 05 | Özcan | 2,680 | 8.2 | 25 |
| 06 | Yıldız | 2,678 | 8.2 | 5 |
| 07 | Çelik | 2,620 | 8.0 | 4 |
| 08 | Arslan | 2,559 | 7.8 | 11 |
| 09 | Aydın | 2,244 | 6.9 | 9 |
| 10 | Yaman | 2,172 | 6.6 | – |
| 11 | Yıldırım | 2,091 | 6.4 | 7 |
| 12 | Kaya | 1,996 | 6.1 | 2 |
| 13 | Güler | 1,805 | 5.5 | – |
| 14 | Özkan | 1,762 | 5.4 | 22 |
| 15 | Acar | 1,729 | 5.3 | 28 |
| 16 | Çetin | 1,712 | 5.2 | 15 |
| 17 | Çakır | 1,709 | 5.2 | 24 |
| 18 | Şahin | 1,697 | 5.2 | 6 |
| 19 | Erdoğan | 1,573 | 4.8 | 26 |
| 20 | Doğan | 1,278 | 3.9 | 12 |
| 21 | Yerlikaya | 1,233 | 3.8 | – |
| 22 | Şen | 1,223 | 3.7 | – |
| 23 | Yalçın | 1,137 | 3.5 | – |
| 24 | Özçelik | 1,080 | 3.3 | – |
| 25 | Can | 1,072 | 3.3 | 27 |
| 26 | Gülen | 1,066 | 3.3 | – |
| 27 | Bulut | 1,058 | 3.2 | – |
| 28 | Aydemir | 1,019 | 3.1 | – |
| 29 | Özer | 962 | 2.9 | – |
| 30 | Aktaş | 944 | 2.9 | 30 |
How do these counts compare with Bolu’s population?
With an ADNKS population of 327,173 in 2025, about 18.7 in every 1,000 people in Bolu are called Yılmaz. The 30 listed surnames together cover 59,997 people, 18.3% of the population.1,2
Bolu lies in the Black Sea Region. According to ADNKS its population grew by 4.9% between 2018 and 2025.2
| 2018 | 311,810 |
|---|---|
| 2019 | 316,126 |
| 2020 | 314,802 |
| 2021 | 320,014 |
| 2022 | 320,824 |
| 2023 | 324,789 |
| 2024 | 326,409 |
| 2025 | 327,173 |
Which surname leads in the neighbouring provinces?
- AnkaraAnkara: also Yılmaz, with 88,766 people in 2025, 14.5 times as many as in Bolu.
- BilecikBilecik: also Yılmaz, with 3,322 people in 2025, 54% of the figure in Bolu.
- ÇankırıÇankırı: also Yılmaz, with 2,525 people in 2025, 41% of the figure in Bolu.
- DüzceDüzce: also Yılmaz, with 8,034 people in 2025, 1.3 times as many as in Bolu.
- EskişehirEskişehir: also Yılmaz, with 12,337 people in 2025, 2.0 times as many as in Bolu.
- KarabükKarabük: also Yılmaz, with 4,892 people in 2025, 80% of the figure in Bolu.
- SakaryaSakarya: also Yılmaz, with 17,597 people in 2025, 2.9 times as many as in Bolu.
- ZonguldakZonguldak: also Yılmaz, with 9,732 people in 2025, 1.6 times as many as in Bolu.
Neighbours: land borders derived from Natural Earth boundaries.3
Has Bolu’s top three changed over the years?
| Year | 1. | 2. | 3. |
|---|---|---|---|
| 2018 | Yılmaz 5,879 | Öztürk 4,257 | Özdemir 3,606 |
| 2019 | Yılmaz 5,859 | Öztürk 4,249 | Özdemir 3,606 |
| 2020 | Yılmaz 5,878 | Öztürk 4,280 | Özdemir 3,582 |
| 2021 | Yılmaz 5,940 | Öztürk 4,296 | Özdemir 3,612 |
| 2022 | Yılmaz 5,943 | Öztürk 4,307 | Özdemir 3,669 |
| 2023 | Yılmaz 6,053 | Öztürk 4,282 | Özdemir 3,684 |
| 2024 | Yılmaz 6,122 | Öztürk 4,314 | Özdemir 3,694 |
| 2025 | Yılmaz 6,106 | Öztürk 4,374 | Özdemir 3,703 |
Sources
- 1Türkiye İstatistik Kurumu (TÜİK) · ADNKS, TÜİK Nüfus İsim Portalı: En çok kullanılan soyisimler (ADNKS)
- 2Türkiye İstatistik Kurumu (TÜİK) · ADNKS, TÜİK ADNKS: Cinsiyete göre nüfus, Türkiye ve 81 il
- 3Natural Earth, Natural Earth: Admin-1 boundaries