Niilo Martikainen is a professional footballer from FIN and is currently 19 years old. He is on the books of FC Haka and wears shirt number 19. His main role on the pitch is Forward. His stronger foot is Left.

During the Finland Ykkosliigacup 2026 campaign, Niilo Martikainen made 4 appearances, scoring 0 goals and adding 0 assists. He averaged 0 goals per match from 0 shots, with 0 on target.