David William Schindler, , (August 3, 1940 – March 4, 2021) was an American/Canadian limnologist. He holds the Killam Memorial Chair and is Professor of Ecology in the Department of Biological Sciences at the University of Alberta in Edmonton, Alberta. He was known for "innovative large-scale experiments" on whole lakes at the Experimental Lakes Area (ELA). He was also known for his research on acid rain.