Louis Antoine François Baillon (20 January 1778 – 2 December 1855) was a French naturalist and collector. He was born in Montreuil-sur-Mer and died in Abbeville. His father, Jean-François-Emmanuel Baillon (1742-1801), a lawyer 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. Afterwards, he settled in Abbeville, and like his father, became known for his correspondence with famed naturalists. In his studies, the younger Baillon maintained correspondence with Franco Andrea Bonelli, Étienne Geoffroy Saint-Hilaire and Prince Maximilian of Wied-Neuwied.