G. Kosteas is a professional footballer from GRE and is currently 24 years old. His main role on the pitch is Forward. His estimated market valuation currently stands at 200K €.

His latest transfer saw him join AO Egaleo from Asteras Aktor B via on 2025-07-26.

During the Greek Super League 2 2025-2026 campaign, G. Kosteas made 20 appearances, scoring 2 goals and adding 0 assists. He averaged 0.1 goals per match from 0 shots, with 0 on target.