At international level, he features for Greece U21. His main role on the pitch is Defender. His estimated market valuation currently stands at 300K €.

His latest transfer saw him join Olympiakos Piraeus B from Olympiacos Piraeus via on 2025-07-01.

Across the Greek Cup 2024-2025, Athanasios Koutsogoulas appeared in 3 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.