John Cameron "Robbo" Robertson (born 16 November 1962) is a former Australian politician who served as the leader of the Labor Party in New South Wales from 2011 to 2014.

[5] In 2001, Robertson was elected unopposed as the secretary of Unions NSW (formerly the Labor Council of New South Wales), replacing Michael Costa.

[6] One of his first acts as secretary was to organise a blockade of the New South Parliament to protest the introduction of workers compensation law reforms.

During his term as secretary, Robertson headed the organisation as it sold its holiday property "Currawong" to finance a campaign to stop the implementation of WorkChoices by the Federal Howard government.

[9] Robertson was a pivotal player in the campaign to replace Federal Opposition Leader Kim Beazley with Kevin Rudd in 2006.

[7] Robertson has held numerous other roles including member of the Building and Construction Industry Long Service Payments Corporation in 1993 and director of WorkCover NSW between 2001 and 2007.

[citation needed] On 18 October 2008, Robertson was endorsed to be the Labor Party candidate to fill the vacancy caused by the resignation of former state treasurer Michael Costa.

[10] He was subsequently appointed to the New South Wales Legislative Council (the state's upper house) to fill that casual vacancy.

After Kristina Keneally announced she was standing down as state Labor leader and returning to the backbench, Robertson was heavily tipped to succeed her.

"[14] In the aftermath of the 2014 Sydney hostage crisis, it was revealed that Robertson had previously sent a letter on behalf of the gunman, Man Haron Monis, a constituent in his Blacktown electorate, to the Department of Family and Community Services.

The letter was, according to Robertson, routine procedure on behalf of a constituent and written in support of Monis' request for a supervised visit with his children on Father's Day in 2011 despite an apprehended violence order against him.

ABC News reported that several members of the Labor caucus were gathering support to have Robertson voted out if he didn't resign.