Jack William Walker (born 8 August 1999) is an English professional rugby league footballer who plays as a for Oldham RLFC in the RFL Championship and the England Knights at international level.
Walker was born in Leeds, West Yorkshire, England.
Walker made his début for Leeds in the Challenge Cup against Doncaster where he scored a hat trick. He made his first Super League début against Huddersfield. He then went on to become Leeds' first choice fullback and played in the Rhinos' 2017 Super League Grand Final victory over the Castleford Tigers 24-6 at Old Trafford.
On 21 September 2023 it was announced that he had signed for Hull F.C. ahead of the 2024 season.
On 17 Jan 2025 it was reported that he had signed for Sheffield Eagles in the RFL Championship
On 28 August 2025 it was reported that he had signed for Salford Red Devils in the Super League
On 7 January 2026 it was reported that he had signed for Oldham RLFC in the RFL Championship on a 1-year deal.
On 14 March 2026 he made a surprise appearance for Huddersfield Giants Reserves in the their match against Warrington Wolves Reserves
In 2018, Walker was selected to play for England Knights on their tour of Papua New Guinea. He played against Papua New Guinea at the Oil Search National Football Stadium.