George Gabriel de Pellieux was a French army officer who was best known for ignoring evidence during the Dreyfus affair, a scandal in which a Jewish officer was convicted of treason on the basis of a forgery.

The Dreyfus affair was a political scandal that divided the Third French Republic from 1894 until its resolution in 1906. The scandal began in December 1894 when Captain Alfred Dreyfus, a 35-year-old Alsatian French artillery officer of Jewish descent, was convicted of treason for communicating French military secrets to the German Embassy in Paris. He was sentenced to life imprisonment and sent overseas to the penal colony on Devil's Island in French Guiana, where he spent the following five years imprisoned in very harsh conditions.