Araucaria bidwillii, commonly known as the bunya pine or bunya-bunya and sometimes referred to as the false monkey puzzle tree, is a large evergreen coniferous tree in the plant family Araucariaceae. It is found naturally in south-east Queensland Australia and two small disjunct populations in north eastern Queensland's World Heritage listed Wet Tropics. There are many old planted specimens in New South Wales, and around the Perth, Western Australia metropolitan area. They can grow up to 30–45 m (98–148 ft). The tallest presently living is one in Bunya Mountains National Park, Queensland which was reported by Robert Van Pelt in January 2003 to be 169 feet (51.5 m) in height.

The bunya pine is the last surviving species of the Section Bunya of the genus Araucaria. This section was diverse and widespread during the Mesozoic with some species having cone morphology similar to A. bidwillii, which appeared during the Jurassic. Fossils of Section Bunya are found in South America and Europe. The scientific name honours the botanist John Carne Bidwill, who came across it in 1842 and sent the first specimens to Sir William Hooker in the following year.