Richard Olding Hynes FRS (born 29 November 1944) is a British biologist, a Howard Hughes Medical Institute Investigator, and the Daniel K. Ludwig Professor for Cancer Research at the Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology. His research focuses on cell adhesion and the interactions between cells and the extracellular matrix, with a particular interest in understanding molecular mechanisms of cancer metastasis. He is well known as a co-discoverer of fibronectin molecules, a discovery that has been listed by Thomson Reuters ScienceWatch as a Nobel Prize candidate.