Augustin Nicolas Gilbert (15 February 1858 - 4 March 1927) was a French physician born in the town of Buzancy, Ardennes.
He received his doctorate from the University of Paris and became an interne at the Hôtel-Dieu de Paris. Later he was a professor of therapeutics (1902) and clinical medicine (1905) at Hôtel-Dieu. In 1907 he became a member of the Académie de Médecine
He published many articles and books on a wide array of medical subjects. With Jean Alfred Fournier (1832-1914) he published Bibliothèque rouge de l'étudiant en médecine, and with Paul Camille Hippolyte Brouardel (1837-1906) he published the 10-volume Traité de médecine et de Thérapeutique. Also, with neurologist Maurice Villaret (1877-1946) he did extensive research of portal hypertension.[1]
Gilbert is remembered for his description of a fairly common hereditary cause of increased bilirubin. Today this disorder is known as Gilbert's syndrome and is believed to be caused by a deficiency of the enzyme glucuronosyltransferase.