Eugène Louis Bouvier (9 April 1856, in Saint-Laurent-en-Grandvaux – 14 January 1944, in Paris) was a French entomologist and carcinologist. Bouvier was a professor at the Muséum national d'histoire naturelle.
Following graduation at the normal school in Lons-le-Saunier, he taught classes in Clairvaux, Versailles, Saint-Cloud and Villefranche-sur-Saône. From 1882 to 1887, he served as a "boursier" at the Muséum national d'histoire naturelle, where he studied with Alphonse Milne-Edwards (1835–1900) and Edmond Perrier (1844–1921). Together with Milne-Edwards, he worked on some of the crustaceans from the Travailleur and Talisman expeditions (1880–1883).
In 1887, he earned his doctorate in natural sciences with a dissertation involving prosobranch gastropods, Système nerveux, morphologie générale et classification des Gastéropodes prosobranches. In 1889 he became an associate professor at the Ecole supérieure de pharmacie de Paris, and in 1895, he attained a professorship of natural history (chair of "articulated animals"; starting in 1917 it was referred to as the chair of entomology) at the Muséum. Bouvier maintained the chair of entomology until 1931, when he was succeeded by René Jeannel (1879–1965).