Transdev NSW was a bus operator in the northern, southern and western suburbs of Sydney, Australia.

The origins of Transdev NSW can be traced back to February 1935 when GH Ramsay commenced a bus service between Sutherland station and Woronora River.

In March 1989 the Hurstville to Bankstown and Lugarno services of Peakhurst Coaches were purchased, although the latter was sold in August 1989 to Punchbowl Bus Company.

[2][3] In July 1989, the business of Hadfields Bus Lines, Engadine was purchased and at this point, all the operations were rebranded as Southtrans.

[18] In January 2005, the Granville and Bankstown routes of Baxter's Bus Lines were transferred to Connex and Transit First and became part of Region 13.

The idea to make bus services "straighter" did not have a welcome reception with passengers who preferred convenience as opposed to speed for the sake of it on shorter routes.

[citation needed] In February 2007, Veolia bought out its Region 13 partner Transit First which included the transfer of 86 buses, 15 routes and the lease on the current Bankstown Airport depot.

[33] Transdev NSW operated bus routes from depots at Bankstown Airport, Kingsgrove, Menai, Mount Kuring-gai, Revesby, South Granville and Taren Point.

Transdev jointly operated the temporary North West Night Bus (NW1 & NW2) with Hillsbus from May 2019 until November 2019.

[34][35] The bus service stopped at stations along the Metro North West Line on Sunday to Wednesday nights.

The fronts of the older white buses were originally yellow and were repainted when the company was rebranded as Veolia in April 2006.