Peter Dunstan Hastings (1920–1990) was an Australian journalist and editor.
He was editor of Consolidated Press's Bulletin (1962–64), and foreign affairs writer for News Ltd's Australian (1966–70) and John Fairfax & Sons Ltd's Sydney Morning Herald (1970–74, 1976–90).
As a journalist specializing in Indonesia and Papua New Guinea, Hastings became a respected figure in both of these countries, despite being banned from Indonesia on two occasions.
He also enjoyed good relationships with embassies and Australian Government officials in Canberra.