Matt Hilder (born 30 April 1982) is an Australian former professional rugby league footballer who played in the 2000s and 2010s. He played for the Cronulla-Sutherland Sharks, Gold Coast and Newcastle Knights in the National Rugby League. He primarily played at lock, hooker and five-eighth. Throughout his playing career he was known by two nicknames: Trouble, and Waltzing (as in "Waltzing Matilda").