Metro Transport Sydney (MTS) was the owner of the now-demolished Sydney Monorail and the former owner of the Inner West Light Rail in Sydney, New South Wales. Established in 2001, it replaced the Sydney Light Rail Company (SLRC), the previous owner of the light rail, and CGEA Transport Sydney, the previous owner of the monorail. It was bought by the New South Wales Government in 2012. The Metro Transport Sydney brand was discontinued from 1 July 2013, and the SLRC and Metro Transport Sydney were deregistered later that month.

Metro Transport Sydney contracted the day-to-day operations of the monorail and light rail to Veolia Transport Sydney, a subsidiary of Veolia Transdev, who operated them since 1998. After the government takeover of Metro Transport Sydney, Veolia Transport Sydney remained as the operator of monorail and light rail. Veolia Transport Sydney later renamed to Transdev Sydney on 1 July 2013. The monorail was also shut down on the same day.

Until the government takeover in 2012, Metro Transport Sydney owned:

Both Metro Monorail and Metro Light Rail had similar logos to Metro Transport Sydney, with all of them bearing the letter "M", but with the right leg of the letter containing a different word (either "Transport", "Light Rail" or "Monorail"). After the Metro Monorail was rebranded Sydney Monorail, the "M" logo was replaced with a logo of a monorail vehicle.

Metro Transport Sydney advocated for a light rail extension to Circular Quay between the late 1990s and the late 2000s, but did not gain state government support. After a change of state government in the 2011 state election, this extension has been built as part of the separate CBD and South East Light Rail, with the CBD section to Circular Quay completed in December 2019.

In March 1994, the Sydney Light Rail Company (SLRC) was formed. It was owned by Australian Infrastructure Fund (39%), Utilities Trust of Australia (39%) and Legal & General (22%) and was awarded a 30-year concession to operate the Sydney Light Rail (SLR) system until February 2028 when ownership would pass to the State Government. The contract gave the company significant control over the commercial arrangements relating to future extensions or interconnecting lines. SLRC contracted operation of the line to TNT Transit Systems. Another TNT subsidiary, TNT Harbourlink, owned the nearby Sydney Monorail.

After TNT was purchased by Dutch postal company PostNL in January 1997 and merged to form TNT Post Group in 1998, TNT decided to dispose of its businesses not centred on mail and logistics services, including the Sydney monorail. SLRC formed a joint venture with CGEA Transport named CGEA Transport Sydney to purchase TNT Transit Systems and TNT Harbourlink on 10 August 1998. The share composition of the joint venture were CGEA Transport (51%) and SLRC (49%, with 19% Australian Infrastructure Fund, 19% Utilities Trust of Australia and 11% Legal & General). This purchase resulted in:

As a result, the operations of both the light rail and the monorail came under the same company (CGEA).