Henri-Robert (1863-1936) was a French lawyer, historian, and member of the Académie française in 1923.
Born an illegitimate child, Robert was admitted to the bar in 1885 and rose to become a celebrated criminal defense lawyer. He defended a young woman named Gabrielle Bompard in a sensational 1889 murder trial, calling in Georges Gilles de la Tourette as an expert witness on hypnotism. He also defended the fraudster Thérèse Humbert, and the serial child killer Jeanne Weber, twice. In 1903 a Paris correspondent for the New York Times described him as "an exceptionally successful lawyer... the favorite advocate of the criminal classes (who) has already saved innumerable heads from the guillotine".