John Mahon is a professional footballer from IRL and is currently 27 years old. He is on the books of Waterford United and wears shirt number 5. His main role on the pitch is Defender. His stronger foot is Right. His estimated market valuation currently stands at 100K €.

His latest transfer saw him join Waterford United from Sligo Rovers via on 2026-01-01.

Across the Ireland Premier Division 2026, John Mahon appeared in 4 matches and averaged 2 tackles, 0.8 interceptions, 15 clearances, and 0.3 blocked shots per game.