David John Karoly (born 1955) is an Australian scientist and academic. Currently he is a member of the Intergovernmental Panel on Climate Change (IPCC) Working Group 2 and a member of the faculty of the School of Earth Sciences at the University of Melbourne. Prior to his current position at University of Melbourne, Dr. Karoly was a professor at The University of Oklahoma School of Meteorology. He was the "Coordinating Lead Author" of a chapter in "the scientific assessment of climate change" published by the IPCC in 2001. He was Director of the Cooperative Research Centre for Southern Hemisphere Meteorology at Monash University from 1995 to 2000. Karoly was awarded a doctorate in Meteorology from the University of Reading.