Jean-Baptiste Bouillaud

Jean-Baptiste Bouillaud (September 16, 1796 – October 29, 1881) was a French physician who was born in Bragette, now part of Garat, Charente.

He received his medical doctorate in 1823 and later was a professor at the Hôpital de la Charité in Paris. Puerto Rican independence leader, surgeon and Légion d'honneur laureate,

Bouillaud performed research of many medical diseases and conditions, including cancer, cholera, heart disease and encephalitis, to name a few. He is remembered for providing a correlation between rheumatism and heart disease.

In 1825 Bouillaud published Traité clinique et physiologique de l'encéphalite, ou inflammation du cerveau in which he includes one of the earliest studies on localization of brain functions. He maintained that loss of articulate speech was associated with lesions of the anterior lobe.