Edward L. Cussler (born 1940) is an American chemical engineer and Professor in the Department of Chemical Engineering and Materials Science at the University of Minnesota. He is internationally known for his work in fluid mechanics, transport phenomena, and gas separations, especially in the areas of membranes and gas sorption. Cussler is an author of more than 250 academic papers, dozens of patents, and five books including the acclaimed text: “Diffusion” (Cambridge, 2009, 3rd Edition). He has served as Director, Vice President and President of the American Institute of Chemical Engineers (AIChE, 1989–1995), and he presented the AIChE Institute Lecture in 2014. Cussler and his wife Betsy, a former teacher at Edina High School, are long-time residents of Minneapolis, Minnesota.