Dean Mumm (born 5 March 1984 in Auckland, New Zealand) is an Australian rugby union player currently playing for English Premiership side Exeter Chiefs.
Mumm attended The King's School, Sydney, along with fellow Waratahs Benn Robinson, Daniel Halangahu and Will Caldwell. He captained The King's School rugby XV team in 2001 and 2002, eventually going on to win the GPS title in the latter year. Mumm made appearances for the U16 Australian rugby team in addition to going on to captain the Australian Schoolboys team in 2002. Mumm was selected for the Australian Universities and Australian Barbarians teams in 2004, and was a member of the Australian under 21 team that finished runners up in the 2005 IRB Under 21 World Championship. Mumm graduated New South Wales Waratah Academy and went on to attend the University of Sydney where he played with their rugby team winning the Tooheys New Cup twice in the process.
Although primarily a second-rower, Mumm has been utilised as flanker, making use of his athleticism whilst adding height to the line-out. He debuted for the NSW Waratahs against Salta on their 2004 Argentine rugby tour. Mumm made his Super Rugby debut against the Lions in Johannesburg, in 2007, and completed his Super Rugby debut season with a try against the Hurricanes in Wellington, New Zealand. Mumm went on to play 12 out of 13 games in the 2007 season for the Waratahs, missing one through injury. During his tenure with the Waratahs, Dean also played on multiple occasions for the Wallabies. It was announced on 23 April 2012 that Dean will be joining English Aviva Premiership team Exeter Chiefs. On 8 August 2013, he was named as Exeter Chiefs' team captain for the 2013–14 season.
