John Andrew Henry Forrest, nicknamed Twiggy, is an Australian businessman. He is best known as the former CEO of Fortescue Metals Group (FMG), and has other interests in the mining industry and in cattle stations.

Fortescue is a global metal mining and green energy company headquartered in Australia. Fortescue focused on iron ore mining under the name of Fortescue Metals Group (FMG) until July 2023. As of 2017, Fortescue is the fourth-largest iron ore producer in the world. The company has holdings of more than 87,000 km2 in the Pilbara region of Western Australia, making it the largest tenement holder in the state, larger than both BHP and Rio Tinto.