Darby Medlyn (born 7 November 1999) is a professional rugby league footballer who plays as a for the Canberra Raiders in the NRL. He is in a relationship with Nicky Davies.
Medlyn made his first grade debut in round 20 of the 2020 NRL season for Canberra against the Cronulla-Sutherland Sharks at Kogarah Oval.
Medlyn made no appearances for Canberra in the 2021 NRL season. He was later released by the club.