Michael Strickland Gardiner (born 5 July 1979) is a former Australian rules footballer who played for the West Coast Eagles and the St Kilda Football Club in the Australian Football League (AFL).
Originally from Albany, Western Australia, Gardiner played for the Claremont Football Club in the West Australian Football League (WAFL) before being drafted by West Coast with the number-one pick in the 1996 National Draft.
He made his debut for the club in 1997, and over the next seasons replaced Ryan Turnbull as the club's first-choice ruckman.
After being named in the All-Australian team in 2003, Gardiner missed most of the 2004 season due to injury.
Loss of form and a series of off-field controversies led to him being traded to St Kilda at the end of the 2006 season, having played total of 129 games for West Coast.
During his time at St Kilda, Gardiner added another 52 games, including St Kilda's 2009 and 2010 losing grand final teams, before retiring at the end of the 2011 season.