Sethunathasarma Krishnaswami (1945–2015), popularly known as Swami, was an Indian geochemist and an honorary scientist at the geosciences division of the Physical Research Laboratory. He was known for his studies on low temperature geochemistry and was an elected fellow of the Indian Academy of Sciences, Indian National Science Academy, The World Academy of Sciences, National Academy of Sciences, India, American Geophysical Union, Geochemical Society and European Association of Geochemistry (2003). The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Earth, Atmosphere, Ocean and Planetar