Duncan Irschick (born 1969 in San Francisco, California) is an evolutionary ecologist and functional morphologist in the field of animal athletics, more specifically known as animal performance. He has worked on many kinds of animal species, including reptiles and amphibians, rodents, ungulates, spiders, and humans. He was a faculty member at Tulane University for five years (2001–2006) before joining the faculty at the University of Massachusetts at Amherst in 2006.