Dr. Susan Horton is Professor Emeritus of global health economics from the University of Waterloo, Canada. She has a BA from Cambridge University, and an AM and PhD from Harvard University, all in economics.  She is a Fellow of the Royal Society of Canada and a Fellow of the Canadian Academy of Health Sciences.  

Professor Horton is well-known for her work on the economics of diagnostics and of cancer in low- and middle-income countries , as well as on the economics of nutrition and her contribution to the global investment case for nutrition. She is one of the three lead authors of the 2021 Lancet Commission on Diagnostics, and currently serves on the Strategic & Technical Advisory Group on Medical Devices of the WHO.  

She has worked in more than twenty low- and middle-income countries including Kenya, Tanzania and Ghana, and consulted for over a dozen UN organizations, international development banks and international research organizations. According to Google Scholar, as of December 2023, her work has been cited almost 30,000 times.