Harry R. Lewis
Professor of Computer Science at Harvard University and former Dean of Harvard College; noted author · United States · On the map · Academics · Born 1947 · age 79
Harry Roy Lewis is an American computer scientist, mathematician, and university administrator known for his research in computational logic, textbooks in theoretical computer science, and writings on computing, higher education, and technology.
Harry R. Lewis is read about 17 times a day, in 6 languages.
A typical day, 30 days to 10 October 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 120 days, one point a day.
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![Lewis demonstrating his senior thesis project, SHAPESHIFTER, via video link to a class in another room[6][L68]](https://upload.wikimedia.org/wikipedia/commons/thumb/7/74/HarryRLewis_Harvard_demonstrating_SHAPESHIFTER_1967or1968.jpg/500px-HarryRLewis_Harvard_demonstrating_SHAPESHIFTER_1967or1968.jpg)
Lewis demonstrating his senior thesis project, SHAPESHIFTER, via video link to a class in another room[6][L68]
![On Halloween 1982, Lewis' teaching assistants appeared at his home in "Harry Lewis" costume, including his then-trademark mustache and pipe. Future Harvard professor Margo Seltzer is at left.[25]](https://upload.wikimedia.org/wikipedia/commons/thumb/0/02/HarryRLewis_Harvard_AppliedSciences11_TeachingFellows_Halloween1982.jpg/500px-HarryRLewis_Harvard_AppliedSciences11_TeachingFellows_Halloween1982.jpg)
On Halloween 1982, Lewis' teaching assistants appeared at his home in "Harry Lewis" costume, including his then-trademark mustache and pipe. Future Harvard professor Margo Seltzer is at left.[25]
Lewis in his office (2016)About this person
He is Gordon McKay Research Professor of Computer Science at Harvard University, and was Dean of Harvard College from 1995 to 2003.
