Jean Baptiste Paulin Trolard (27 November 1842 – 13 April 1910) was a French anatomist from Sedan, Ardennes, known for his work on the anastomotic veins of the cerebral circulation.

From 1869 to 1910, he was a professor of anatomy at the Mustapha Pacha hospital Algiers.

[2] Known for his work against contagious diseases and epidemics, he was a proponent of free vaccinations for all indigent peoples.

In 1882, he founded La Ligue de Reboisement in an effort to promote reforestation and prevent the deforestation of Algeria for the sake of creating pastureland.

[2] With Henri Soulié, he was co-founder of the Pasteur Institute of Algeria in 1894.