| Eugène Bellier de la Chavignerie | |
| Birth Date: | 28 January 1819 |
| Birth Place: | Chartres, France |
| Death Date: | 25 September 1888 (aged 69) |
| Death Place: | Évreux, France |
| Field: | Entomology
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| Work Institutions: | Société entomologique de France |
Eugène Bellier de la Chavignerie (28 January 1819, Chartres – 25 September 1888, Évreux)[1] was a French entomologist who specialised in lepidoptera and coleoptera.
Eugène was born in Chartres in 1819, the son of François Jean-Baptiste de La Chavignerie and Francine Marchand. A student at the Lycée Louis-le-Grand in Paris, he was initiated into entomology by his maternal grandfather, Jean-Jacques Marchand (1770–1852), who had an astonishing collection of lepidoptera while having been one of the founding members of the Société entomologique de France in 1832 and a correspondent of the Société linnéenne de Paris.
After his studies in Chartres and Paris, he worked at the Palais de Justice from 1844 to 1859. He devoted himself mainly to lepidoptera and wrote many scientific papers on them, in particular on local faunas such as those of Auvergne (1850), the Alps (from 1854 to 1858), the Pyrénées-Orientales (1858), Sicily (1860) and Corsica (1861). After his death, the entomologist Charles Oberthür (1845–1924) acquired his collection of lepidoptera, while his brother René Oberthür (1852–1944) bought his coleoptera.