Michael Weiss (born 14 December 1955) is a German mathematician and an expert in algebraic and geometric topology.
He completed his PhD in 1982 at the University of Warwick under the supervision of Brian Sanderson.
[1] He was then affiliated as a researcher with the Institute of Advanced Scientific Studies near Paris and the universities of Bielefeld, Edinburgh, and Göttingen.
In work with Ib Madsen, he resolved the Mumford Conjecture about rational characteristic classes of surface bundles in the limit as the genus tends to infinity.
In 2006, he was awarded the Fröhlich Prize of the London Mathematical Society.