The 2019 Canterbury Cup NSW season was the eleventh season of the New South Wales Cup, the top rugby league competition administered by the New South Wales Rugby League.

The competition acts as a second-tier league to the ten New South Wales-based National Rugby League clubs, as well the Canberra Raiders and New Zealand Warriors.

The Newtown Jets won the premiership and played against Burleigh Bears, who won the 2019 Intrust Super Cup, in the NRL State Championship.

Channel 9 will be moving their weekly game from Saturday to Sunday to move between their broadcast of the Sunday Footy Show and their Sunday Afternoon NRL Broadcast for the NSW market, whilst in QLD they will broadcast an Intrust Super Cup match.

The Canterbury Cup is presented every weekend on Steele Sports.