Douglas Niven Cameron (born 27 January 1951) is a Scottish-born Australian politician and trade unionist. He has been a Labor member of the Australian Senate since July 2008, representing the state of New South Wales.
Cameron was born in Bellshill, Scotland. He was first elected to the Senate at the 2007 federal election. He won Labor preselection by mounting a successful challenge to then incumbent Senator George Campbell. Cameron previously served as the national secretary of the Australian Manufacturing Workers Union.
During the period of leadership tensions between Julia Gillard and Kevin Rudd, Cameron was a vocal Rudd supporter. In the Second Rudd Ministry, which held office from June to September 2013, he served as Parliamentary Secretary for Housing and Homelessness.
He currently serves as the Shadow Minister for Housing and Homelessness and Shadow Minister for Skills and Apprenticeships since 23 July 2016 under the leadership of Bill Shorten. Before that he was Shadow Minister for Human Services from 18 October 2013 to 23 July 2016 also under Shorten.
Cameron announced on 24 July 2016 that he would retire at the end of his current term, and not contest the 2019 election.