Sekhar Basu (20 September 1952 – 24 September 2020) was an Indian nuclear scientist who served as the chairman of the Atomic Energy Commission and Secretary to the Government of India, Department of Atomic Energy (DAE). He also served as the Director of Bhabha Atomic Research Centre (BARC), the Project Director of Nuclear Submarine Program and later as the Chief Executive of the Nuclear Recycle Board at BARC. He was a recipient of India's fourth highest civilian honor Padma Shri in 2014.