Robert M. Gray (born November 1, 1943[1]) is an American information theorist, and the Alcatel-Lucent Professor of Electrical Engineering at Stanford University in Palo Alto, California.

In 1980, Gray was elevated to the grade of IEEE fellow for contribution to information and communication theory.

[8] In 2020 he received both, The Okawa Prize for his seminal research in information coding theory and data compression, and enormous contributions to the promotion of diversity in engineering education, and IEEE Aaron D. Wyner Distinguished Service Award for his outstanding leadership in, and providing long standing, exceptional service, to the Information Theory community.

Gray was elected as a member into the National Academy of Engineering in 2007 for contributions to information theory and data compression.

Gray earned his Ph.D. in Electrical Engineering from University of Southern California in 1969; his Ph.D. adviser was Robert A. Scholtz.