Dean Hadley (born 5 August 1992) is an English professional rugby league footballer who plays as a second-row, loose forward, prop and hooker for Hull Kingston Rovers in the Super League and the England Knights at international level.

Hadley began his career with Hull F.C., coming through their academy and signing his first professional contract before the start of the 2013.

[6] On 12 August 2023, Hadley played for Hull Kingston Rovers in their 17-16 golden point extra-time loss to Leigh in the Challenge Cup final.

[7] Hadley played a total of 23 games for Hull Kingston Rovers in the 2023 Super League season as the club finished fourth on the table and qualified for the playoffs.

[8] On 12 October 2024, Hadley played in Hull Kingston Rovers 2024 Super League Grand Final loss against Wigan.