List of Famous people who are 68

Donald M. Eigler is an American physicist associated with the IBM Almaden Research Center, who is noted for his achievements in nanotechnology.

Charles Eric Leiserson is a computer scientist, specializing in the theory of parallel computing and distributed computing, and particularly practical applications thereof. As part of this effort, he developed the Cilk multithreaded language. He invented the fat-tree interconnection network, a hardware-universal interconnection network used in many supercomputers, including the Connection Machine CM5, for which he was network architect. He helped pioneer the development of VLSI theory, including the retiming method of digital optimization with James B. Saxe and systolic arrays with H. T. Kung. He conceived of the notion of cache-oblivious algorithms, which are algorithms that have no tuning parameters for cache size or cache-line length, but nevertheless use cache near-optimally. He developed the Cilk language for multithreaded programming, which uses a provably good work-stealing algorithm for scheduling. Leiserson coauthored the standard algorithms textbook Introduction to Algorithms together with Thomas H. Cormen, Ronald L. Rivest, and Clifford Stein.

Hans Rinn is an East German former luger who competed from the early 1970s to the early 1980s. He won three medals at the Winter Olympics, including two gold and one bronze.

Douglas A. Melton is the Xander University Professor at Harvard University, and an investigator at the Howard Hughes Medical Institute. Additionally, Melton serves as the co-director of the Harvard Stem Cell Institute and was the first co-chair of the Harvard University Department of Stem Cell and Regenerative Biology. Melton is a founder of several biotech companies including Gilead Sciences, Ontogeny, iPierian, and Semma Therapeutics. Melton holds membership in the National Academy of the Sciences, the American Academy of Arts and Sciences, and is a founding member of the International Society for Stem Cell Research. With his wife Gail O'Keefe, Melton serves as Faculty Dean of Eliot House, an undergraduate residence at Harvard College.

Rafael Antonio Acevedo Porras is a Colombian former professional road cyclist.