Louis Eugène Robert (6 December 1806 – 28 May 1882) was a French naturalist, geologist and entomologist.

Louis Eugène Robert wrote numerous works on forest insects. He was a friend of Félix Édouard Guérin-Méneville.

He made scientific voyages to Central America, Iceland, Greenland, Scandinavia and Lapland and was one of the naturalists on the 1836 voyage of La Recherche

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