ABN or ABN-2 was the historic call sign of the Australian Broadcasting Corporation's television station in Sydney.

The first national public television station in Australia opened in Sydney at 7:00pm on 5 November 1956 under the call sign ABN-2.

It was opened by Prime Minister of Australia Robert Menzies, with the first television broadcast presented by Michael Charlton, and James Dibble reading the first television news bulletin with full-time colour broadcasting introduced in March 1975.

For more than 40 years, Gore Hill was best known as the location of the ABC's Sydney television studios, which were fully opened in 1958 and which operated until 2002, when the site was closed and sold off.

ABC News New South Wales is presented by Jeremy Fernandez (Sunday–Thursday) and Lydia Feng (Friday–Saturday).