Mark Applegarth (born 10 December 1984), also known by the nickname of "Mash", is an English former professional rugby league footballer who played in the 2000s and 2010s. He played at club level for the Wakefield Trinity Wildcats, the York City Knights (two spells), the Central Queensland Comets and the Batley Bulldogs, as a prop, second-row, or loose forward. He acted as head-coach of Wakefield Trinity, following Willie Poching's departure, in September 2022 and remained in post until the clubs sale in October 2023 and was replaced by his predecessor Daryl Powell.