William Reilly is a professional footballer from USA and is currently 24 years old. He is on the books of Atlanta United and wears shirt number 28. His main role on the pitch is Midfield. He measures 155cm in height and weighs 70kg. His stronger foot is Right. His estimated market valuation currently stands at 400K €.

His latest transfer saw him join Atlanta United from Stanford Cardinal (Stanford University) via on 2024-12-20.

Over 24 appearances in the United States Major League Soccer 2025, William Reilly contributed 1 goals and 0 assists, completed 4 key passes from 280 total passes, and posted a passing accuracy of 10.