Charles Louis Xavier Arnozan (12 November 1852 – 5 February 1928) was a French physician, professor of therapeutics then of medical clinic at the Faculty of Medicine of Bordeaux, member of the Académie Nationale de Médecine, deputy mayor of Bordeaux in charge of hygiene.

[1][2] After high school, he studied medicine at the Faculty of Bordeaux where his teachers were Maurice Denucé and Paul-Louis Lande [fr].

In Paris, in 1879, he defended his medical thesis entitled "Experimental study of the mechanical acts of vomiting", which earned him a bronze medal.

[3] With Louis Vaillard (1850-1935), he showed that duct of Wirsung ligation causes atrophy of the pancreas but not diabetes in contradiction with the works of Joseph von Mering (1849-1908) and Oscar Minkowski.

Thus, he created several anti-tuberculosis and anti-venereal dispensaries and was also a member of the administrative commission of the Hospices civils de Bordeaux.