Isaac Jefferies is a professional footballer from ENG and is currently 22 years old. He is on the books of The New Saints and wears shirt number 37. His main role on the pitch is Forward. His estimated market valuation currently stands at 75K €.

His latest transfer saw him join The New Saints from Cardiff City U21 via on 2026-01-22.

During the Welsh Premier League 2025-2026 campaign, Isaac Jefferies made 16 appearances, scoring 2 goals and adding 0 assists. He averaged 0.1 goals per match from 0 shots, with 0 on target.