Demir Mermerci is a 20-year-old professional football player from TUR. He currently plays for Istanbulspor, wearing the number 32 shirt. He plays primarily as a Midfield. His current market value is estimated at 50K €.

His most recent move was a from Istanbulspor U19 to Istanbulspor on 2025-07-01.

Across 14 appearances in the Turkish First League 2025-2026, Demir Mermerci registered 0 goals and 0 assists, while completing 0 key passes out of 64 total passes with a passing accuracy of 4.2.