(November 5, 1936 – August 27, 2001) was a Greek professor in the departments of Electrical Engineering and Computer Science at the Massachusetts Institute of Technology and Director of the M.I.T. Laboratory for Computer Science (LCS) from 1974 to 2001.

During Dertouzos's term, LCS innovated in a variety of areas, including RSA encryption, the spreadsheet, the NuBus, the X Window System, and the Internet. Dertouzos was instrumental in defining the World Wide Web Consortium and bringing it to MIT. He was a firm supporter of the GNU Project, Richard Stallman, and the FSF, and their continued presence at MIT.

In 1968, he co-founded Computek, Inc., a manufacturer of graphics and intelligent terminals, with Marvin C. Lewis and Dr. Huber Graham.

Dertouzos was a graduate of Athens College and attended the University of Arkansas on a Fulbright Scholarship. He received his Ph.D. from M.I.T. in 1964 and joined the M.I.T. faculty. He died on August 27 at Massachusetts General Hospital, at the age of 64. He was buried at the First Cemetery of Athens.[1]