Donald Nestor Heirman (August 16, 1940 – October 30, 2020) was an American electrical engineer, U.S. Navy Commander, electromagnetic compatibility (EMC) expert, and IEEE Life Fellow. He was a major contributor to international EMC standardization, serving as president of the IEEE Standards Association, and chair of the International Special Committee on Radio Interference (CISPR). He received the IEC Lord Kelvin Award in 2008, among other awards.