Diana McCaulay is a Jamaican writer and environmental activist. She has written five novels, Dog-Heart, Huracan, Gone to Drift, Daylight Come, and the self-published White Liver Gal. Her short fiction has been published in numerous journals and magazines and she has twice won the regional Commonwealth Short Story prize for the Caribbean in 2012 and 2022. She was also a popular newspaper columnist for The Gleaner between 1994-2001. Her most recent novel, Daylight Come, was released by Peepal Tree Press in September 2020.

Diana has received many awards for her environmental work, including a Bronze Musgrave Medal from the Institute of Jamaica, a Ripple Award from the Jamaica Institute of Environmental Professionals and the Order of Distinction (Officer Class) from the Government of Jamaica on Heroes Day 2016. She contributed to the InterGovernmental Panel on Climate Change, which won the Nobel Peace Prize in 2007. 

She is represented by Laetitia Rutherford of Watson, Little in the UK.