Harrison Mcmahon is a professional footballer from SCO and is currently 21 years old. He is on the books of Chelsea FC U19 and wears shirt number 8. His main role on the pitch is Midfield.

His latest transfer saw him join Chelsea U21 from Chelsea U18 via on 2024-07-01.

Over 2 appearances in the English Football League Trophy 2025-2026, Harrison Mcmahon contributed 0 goals and 0 assists, completed 0 key passes from 94 total passes, and posted a passing accuracy of 45.