Mysore Ananthamurthy Viswamitra (1932–2001) was an Indian molecular biophysicist and crystallographer, known for his pioneering work on the X-Ray structural studies of DNA fragments and nucleotide coenzyme molecules. His work is reported to have assisted in the development of the concept of sequence-dependent oligonucleotide conformation. He was an INSA senior scientist and an MSIL chair professor of physics at the Indian Institute of Science and a visiting professor at the University of Cambridge.