Aaron Joseph Douglas Mauger (last name pronounced "Major"; born 29 November 1980 in Christchurch, New Zealand) is a former rugby union player who played at centre for Leicester Tigers. He previously played first five-eighths and second five-eighths for Canterbury (Air New Zealand Cup), the Crusaders (Super Rugby) and the New Zealand All Blacks. He joined the Leicester Tigers at the end of the 2007 Rugby World Cup after signing a two-and-a-half-year contract with the English side.
Mauger captained the New Zealand Under-21 team to success in the International Under-21 Tournaments in 2000 and 2001. He made his All Blacks début in 2001.
He is the younger brother of Nathan Mauger and his uncles are former All Blacks Graeme Bachop and Stephen Bachop. His great-uncle, Ivan Mauger, is a former six time Speedway World Champion.
In March 2010, Mauger announced his retirement due to a back injury. He had attended clinics in the United Kingdom and Germany in his bid to overcome the injury but had been unable to complete training sessions without breaking down. In June 2010 Mauger returned with his family to live in his native New Zealand where he hoped to remain involved with rugby union in a coaching role.
Following a period of coaching with the Crusaders, it was announced that Mauger had signed a 3-year deal (starting in the 2015/2016 season) with Leicester Tigers for the vacant head coach role. The role was previously held by Matt O'Connor who left in 2013 to be head coach at Leinster.