Colleen McCullough (born June 1, 1937) is an internationally acclaimed Australian author. She was born in Wellington in central west New South Wales. A neuroscientist by training, she worked in various Sydney and United Kingdom hospitals before settling to ten years of research and teaching in the Department of Neurology at the Yale Medical School in New Haven, Connecticut, USA.

Her novels include Tim, The Thorn Birds, Indecent Obsession and Morgans Run and the Masters of Rome series. The depth of historical research in the Roman novels led to her being created a Doctor of Letters by Macquarie University in 1993. She is a member of the New York Academy of Sciences and is a fellow of the American Association for the Advancement of Science. In the late 1970s she settled on Norfolk Island, where she lives with her husband, Ric Robinson.

bg:Колийн Маккълоу