Marius Berntsen Olsen is a professional footballer from NOR and is currently 26 years old. He is on the books of GKS Katowice and wears shirt number 14. His main role on the pitch is Defender. He measures 190cm in height and weighs 81kg. His estimated market valuation currently stands at 600K €.

His latest transfer saw him join GKS Katowice from Kristiansund BK via on 2026-03-04.

Across the International Club Friendly 2025, Marius Berntsen Olsen appeared in 5 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.