Raymond Vieussens (ca. 1635 – 16 August 1715) was a French anatomist from Le Vigan. There is uncertainty regarding the exact year of Vieussens birth, with some sources placing it as late as 1641. He studied medicine at the University of Montpellier where he earned his degree in 1670. He later became head physician at Hôtel Dieu Saint-Eloi in Montpellier. Vieussens is remembered for his pioneer work in the field of cardiology, and his anatomical studies of the brain and spinal cord. He regarded English anatomist Thomas Willis (1621–1675) as a major influence towards his career.