Iain Thornley (born 11 September 1991) is an English rugby league footballer who plays as a centre and winger for the Oldham RLFC in the RFL Championship.

He previously played for the Wigan Warriors in the Super League, and on loan from Wigan at the South Wales Scorpions in Championship 1, Leigh and Workington Town in the Championship and the Salford Red Devils in the Super League.

[citation needed] Signed to Wigan as a teenager he was selected for the England Academy side but at age 18, he switched codes to Rugby Union to join Sale Sharks.

[14] In round 11 of the 2023 Super League season, Thornley made his first appearance for Wigan in eleven months and scored two tries for the club in their 14-10 loss against Hull F.C.

[16] On 12 November 2024, it was reported that he had signed for Oldham RLFC in the RFL Championship on a two-year deal.