Bill Leyland (born 3 February 2003) is an English professional rugby league footballer who plays as a for St Helens in the Super League, on a short-term loan from Hull Kingston Rovers.
Leyland was born in Maidstone, Kent, England. His brother Oli Leyland is a fellow London player.
He played for the Invicta Panthers as a junior.
Leyland attended Maidstone Grammar School and graduated from St Marys University in Twickenham, London.
He joined the London Broncos first team squad at the start of the 2022 season.
He made his professional debut for the London Broncos in 2022 against the York Knights.
Leyland was the Championship young player of the year in 2023.
On 15 October 2023, Leyland played in the victory against Toulouse Olympique in France.
On 15 July 2024 it was reported that he had signed for Hull Kingston Rovers in the Super League on a 2-year deal.
On 9 April 2025 it was reported that he had signed for the Huddersfield Giants in the Super League on loan.
On 31 March 2026 it was reported that he had signed for St Helens in the Super League on a short term loan.