George Keyes was an American physical chemist. He came to MIT in 1910 as a research associate in the chemistry department, and served as a professor of physical chemistry from 1910 to 1913, and again from 1916 to 1950, and was a professor emeritus from 1950 to 1976. He became acting head of the Chemistry department in 1922 and served as head of the department from 1923 to 1945.