Joan O'Hagan (1926−2014) was a published author of crime fiction. Born in Australia, she studied Classics in Wellington, then lived in New Caledonia, England and Italy before returning to Australia in 1997. Her thirty years in Rome, including her time spent working in the Australian Department of Immigration, provided her with the backdrop to several of her novels. Her publications include:
'A Roman Death' (Black Quill Press, 1017; Macmillan 1988; Doubleday 1989, Tokyo Hawakawa Publishing 1990, Legenda 1990)
'Jerome & His Women' (Black Quill Press, 2015)
'Against the Grain' (Macmillan 1987, Doubleday 1988, Mondadori 1988)
'Death and a Madonna' (Macmillan 1986, Doubleday 1987)
'Incline and Fall: The Death of Geoffrey Stretton' (Angus & Robertson, 1976).