Zeynep Sude Demirel (born 27 November 2000) is a Turkish volleyball player.

She is 198 cm (6.50 ft) tall at 80 kg (180 lb) and plays in the Middle-blocker position.

She plays for Vakıfbank SK.

On 22 April 2021, she signed a 1-year contract with the Galatasaray Women's Volleyball Team.

This biographical article relating to volleyball in Turkey is a stub.