Louis Antoine François Baillon (20 January 1778 – 2 December 1855) was a French naturalist and collector.
[1] Baillon's father, Jean-François-Emmanuel Baillon (c. 1742 – 25 October 1801), a lawyer, natural history specimen collector, and correspondent of the Muséum national d'histoire naturelle, introduced him to natural history.
In 1798, Baillon began work at as an assistant at the Jardin des Plantes, a position he relinquished following the death of his father.
In his studies, the younger Baillon maintained correspondence with Franco Andrea Bonelli, Étienne Geoffroy Saint-Hilaire and Prince Maximilian of Wied-Neuwied.
Baillon is the Catalogue des Mammifères, Oiseaux, Reptiles, Poissons et Mollusques testacés marins, observés dans l'arrondissement d'Abbeville.