Defne Başyolcu

Defne Başyolcu is a Turkish professional volleyball player who plays as an opposite hitter for Karşıyaka.

Personal life

Defne Başyolcu was born in Bursa, Turkey on 9 August 2006. Her father, Mehmet Başyolcu, was a former national volleyball player, and her mother, Nazan Uzunbay, was also a volleyball player who was with Galatasaray and Bursa.

Club career

Başyolcu is tall at. She has a spike height of and a block height of.
She started her volleyball career in the academy team of Nilüfer Bld. in Bursa in 2020, where she played two seasons. In 2022, she moved to Istanbul and played for Beşiktaş on loan. She contributed to her team's league champion title and promotion to the highest-level Sultans League for the next season. She then played for Eczacıbaşı, and Istanbul BB until 2024. Later, she was with Aydın BB and Karşıyaka in İzmir. In the 2025–26 season, she plays in Aras Kargo..

International career

Turkey U17

Başyolcu was admitted to the Turkey U17 team. She won the bronze medal at the U17 Women Balkan Championship 2022 in Vranje, Serbia, and the silver medal at the 2023 Women's U17 European Volleyball Championship.

Turkey U21

She was a member of the Turkey U21 team. She took part at the 2025 FIVB U21 World Championship Group C matches in Surabaya, Indonesia. In the game against Italy U21 team, she became top scorer with 21 points.

Turkey

Late April 2025, she was called up to the broad roster of the Turkey team for the 2025 FIVB Nations League.
She was part of the Turkey team, which became champion at the 2025 Islamic Solidarity Games in Riyadh, Saudi Arabia.