1981 New South Wales state election

and 15 (of 44) seats in the New South Wales Legislative Council 50 Assembly seats needed for a majority

(contested North Shore; lost)

Elections were held in the state of New South Wales, Australia, on Saturday 19 September 1981. The result was a second "Wranslide": a landslide victory for the Labor Party under Neville Wran. Labor increased its already sizeable majority, winning what is still its biggest-ever share of seats in the New South Wales Legislative Assembly–69 out of 99 seats, 69.7 percent of the chamber until 2011 when it was surpassed by Barry O'Farrell’s landslide election win when the Liberal—National Coalition won 74% of seats.

The Liberals suffered the double indignity of losing the seat contested by their leader Bruce McDonald to an independent, and of being reduced to the same number of seats in parliament as their ostensible junior coalition partner, the National Country Party. In fact it was the second election in a row in which the sitting Liberal leader had failed to win a seat; Peter Coleman had been rolled in his own seat in 1978. Both the Liberals and National Country Party finished with 14 seats.

The election marked another milestone for electoral reform in New South Wales. The allocation of preferences became optional, and partisan gerrymandering was eliminated. Additionally, the practice of creating smaller rural seats to boost country representation was ended. Two further reforms were proposed—and passed—in referendums put to voters on the same day.

Ted Mack, mayor of North Sydney Council, won the seat of North Shore from Opposition Leader McDonald. John Hatton was re-elected unopposed in the seat of South Coast.