Charles Millard Pratt (November 2, 1855 – November 27, 1935) was an American oil industrialist, educator, and philanthropist. As the eldest son of industrialist Charles Pratt, in 1875 he began working at Charles Pratt and Company, soon becoming president. He was a director of the Standard Oil Company and later a president of the Pratt Institute in Brooklyn. A philanthropist, he donated large sums to Vassar College and Amherst College, among other institutions.