Leonidas J. Guibas

Leonidas John Guibas (born 1949) is a Greek-American computer scientist and the Paul Pigott Professor of Computer Science, and by courtesy Electrical Engineering, at Stanford University, where he heads the Geometric Computation Group. His research spans computational geometry, computer graphics, computer vision, machine learning and robotics, with contributions including foundational data structures, the earth mover's distance for image retrieval, Metropolis light transport and the PointNet architecture for deep learning on point clouds. He is a member of the National Academy of Sciences, the National Academy of Engineering and the American Academy of Arts and Sciences, and a Fellow of the ACM and the IEEE. He received the ACM SIGGRAPH Steven A. Coons Award in 2025.