Gary Lee Andersen (born February 19, 1964) is an American football coach, currently in his second stint as the head football coach at Utah State University, a position he held from 2009 to 2012 and resumed in 2019.
Andersen has also been the head football coach of Southern Utah (2003), Wisconsin (2013–2014), and Oregon State (2015–2017).
He served three years as the defensive coordinator at Utah, where he coached the 2008 Utes team that went undefeated and beat Alabama in the Sugar Bowl to finish the season ranked second in the nation.