The Holden Sunbird was a mid-sized automobile, sold as a four-door sedan and a three-door coupé liftback, manufactured by General Motors–Holden's Ltd. in Australia. It was a four-cylinder version of the Holden Torana, offered from 1976 to 1980, when it was replaced initially by the Holden Commodore Four, before the arrival of its natural successor, the Holden Camira, from 1982.

Sunbirds had a 1,892 cm³ 'Starfire' engine that was also installed into the Australian-produced versions of the Toyota Corona.

The original LX series Sunbird was a single-trim range, with four-speed manual and three-speed automatic transmissions. There were minor trim differences compared to the Torana, notably the grille (with vertical bars) and distinctive chrome wheel covers. While there was also an LX series Torana four-cylinder in 1976, it was soon deleted. From that point, Sunbirds were four-cylinder cars, Toranas six- and eight-cylinder ones.

In 1978, the UC series saw the Sunbird expand into three trim levels: base (manual only), SL and SL/E. The UCs had square headlamps and a smoother front end.

The liftbacks were deleted in 1979, leaving only the sedans for the 1980 model year.