John Roe (6 October 1959 – 9 March 2018[1]) was a British mathematician.

He went to Rugby School, was an undergraduate at Cambridge University, and received his D.Phil.

[2] As a post-doctoral student, he was at the Mathematical Sciences Research Institute (MSRI) in Berkeley, and then a tutor at Jesus College, Oxford.

From 1998 until shortly before his death he was a professor at the Pennsylvania State University.

His research interests center around index theorems, coarse geometry, operator algebras, noncommutative geometry, and the Novikov conjecture in differential topology.