Georges Glaeser (8 November 1918 – 1 September 2002) was a French mathematician who was director of the IREM of Strasbourg. He worked in analysis and mathematical education and introduced Glaeser's composition theorem and Glaeser's continuity theorem. Glaeser was a Ph.D. student of Laurent Schwartz.
On 3 July 1973, Glaeser filed a complaint against Vichy collaborator Paul Touvier in the Lyon Court, charging him with crimes against humanity. Glaeser accused Touvier of the 1944 massacre at Rillieux-la-Pape, in which Glaeser's father was murdered. Touvier was eventually imprisoned for life on this charge in 1994.