**Michael Loss** (born 1954) is a mathematician and mathematical physicist who works as a professor of mathematics at the Georgia Institute of Technology.

Loss obtained his Ph.D. in 1982 from ETH Zurich, with a dissertation on the three-body problem jointly supervised by Walter Hunziker and Israel Michael Sigal.

With Elliott H. Lieb he is the author of the textbook *Analysis* (Graduate Studies in Mathematics 14. American Mathematical Society, 1997; 2nd ed., 2001).

In 2012, he became one of the inaugural fellows of the American Mathematical Society, and was elected as a Foreign Corresponding Member of the Chilean Academy of Sciences. He is one of the 2015 winners of the Humboldt Prize.