Antonio Helio de Castro Neto is a Brazilian-born physicist. He is the founder and director of the Centre for Advanced 2D Materials (previously known as the Graphene Research Centre) at the National University of Singapore. He is a condensed matter theorist known for his work in the theory of metals, magnets, superconductors, graphene and two-dimensional materials. He is a distinguished professor in the Departments of Materials Science Engineering, and physicsand professor at the Department of Electrical and Computer Engineering.He was elected as a fellow of the American Physical Society in 2003.In 2011 he was elected as a fellow of the American Association for the Advancement of Science.