Martin Mattner (born 6 August 1982) is a former Australian rules footballer who played for the Sydney Swans and Adelaide Crows in the Australian Football League (AFL). He was traded to Sydney from the Crows in October 2007 in exchange for draft pick number 28. Mattner grew up in a small town called Ki Ki, which is 150 kilometres south-east of Adelaide. In the year he was elevated off Adelaide's rookie list (2002), Mattner was having to travel up to Adelaide twice a week to train and play football for Sturt.