Louis-Anne-Jean Brocq

Louis-Anne-Jean Brocq (February 1, 1856 – December 18, 1928) was a French dermatologist who practiced medicine in Paris, including being head of the medical department at Saint-Louis Hospital (1906-1921).

Brocq was the first to describe several skin disorders, including keratosis pilaris, parapsoriasis and a form of dermatitis called Duhring-Brocq disease (named with Louis Adolphus Duhring); this disease was to be later renamed pemphigoid. He also invented a tar solution used for the treatment of psoriasis.

In 1900, Brocq published the first French encyclopedia of dermatology; a 4-volume treatise named Pratique Dermatologigue.