Michael Eaton Gage is a mathematician who works as a professor of mathematics at the University of Rochester. He is known for his work on the curve-shortening flow, and in particular for the Gage–Hamilton–Grayson theorem, proved by Gage with Richard S. Hamilton and Matthew Grayson, which describes the behavior of any smooth Jordan curve under the curve-shortening flow. He is also one of the original developers of the WeBWorK online homework delivery system.