Nathan Rees MP, (born 12 February 1968), an Australian politician, was the 41st Premier of New South Wales and parliamentary leader of the New South Wales division of the Australian Labor Party from September 2008 to December 2009. Rees is a Member of the New South Wales Legislative Assembly representing Toongabbie for Labor since 2007.

Rees replaced Morris Iemma as Premier and party leader on 5 September 2008. On 3 December 2009, Rees was deposed as leader of the Labor Party by Kristina Keneally after he resoundingly lost a secret ballot in the Labor Party caucus after fifteen months as Premier. He is the shortest-serving member of the New South Wales Parliament to become Premier since Federation, and the only Labor Premier of New South Wales not to lead the party into an election.

Rees was born in 1968 in Western Sydney to parents Daryl and Frances, his mother being a long time member of the Labor Party, reportedly from Penrith, New South Wales. He attended Northmead High School where he served as school captain. On leaving school he initially took up a horticultural apprenticeship and worked as a greenskeeper for Parramatta Council. Subsequently he went on to study English literature at the University of Sydney, attaining an honours degree in 1994, supporting himself by working as a garbage collector (colloquially a "garbo") at the same council. During his time at the Council he became Secretary of the then Municipal and Shire Employees Union.