Bilikere Srinivasa Rao Dwarakanath (born August 4, 1955) is a molecular biologist and a radiation biologist, working on 2-Deoxy-D-glucose therapy in cancer research. His current research interests are experimental oncology, radiobiology, biological radioprotection and cell signaling in cancer therapy. He is currently the Joint Director of the Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Head, Division of Radiation Biosciences, INMAS, and Adjunct Faculty at the Dr. B. R. Ambedkar Center for Biomedical Research (ACBR), University of Delhi.