John Seely Brown (born 1940),[1] also known as "JSB", is an American researcher who specializes in organizational studies with a particular bend towards the organizational implications of computer-supported activities.

Brown was director of Xerox PARC from 1990 to 2000 and chief scientist at Xerox from 1992 to 2002; during this time the company played a leading role in the development of numerous influential computer technologies.

John Seely Brown was born in 1940 in Utica, New York.

JSB is also the namesake of John Seely Brown Symposium on Technology and Society, held at the University of Michigan School of Information.

The first JSB symposium in 2000 featured a lecture by Stanford Professor of Law Lawrence Lessig, titled "Architecting Innovation," and a panel discussion, "The Implications of Open Source Software," featuring Brown, Lessig and the William D. Hamilton Collegiate Professor of Complex Systems at SI, Michael D. Cohen.