Alison Lesley Marsden is the Douglass M. and Nola Leishman Professor of Cardiovascular Disease at Stanford University, with joint appointments in Pediatrics (Cardiology), Bioengineering, and Mechanical Engineering. She earned her BSE in Mechanical Engineering from Princeton and completed her MS and PhD at Stanford. After postdoctoral work and a faculty position at UC San Diego, she returned to Stanford in 2015. Her research focuses on computational modeling of blood flow for applications in cardiovascular disease, surgical planning, and medical device design, particularly in pediatric cardiology. She has published extensively and received multiple prestigious awards for her contributions.