Spenta R. Wadia (born 1 August 1950)[1] is an Indian theoretical physicist with research interests in elementary particle physics, quantum field theory and statistical physics, string theory and quantum gravity. His other scientific interests are in complex systems including cross-disciplinary biology. He is a recipient of the 2004 TWAS Prize in Physics; the 1995 Physics Prize of the International Centre for Theoretical Physics (ICTP); and the J. C. Bose Fellowship of the Govt of India. He is an elected member of TWAS, and a Fellow of all the Science Academies of India. In 2024, he was elected to the American Academy of Arts and Sciences, one of the United States' oldest and most prestigious scholarly societies.