Anselme Gaëtan Desmarest
Anselme Gaëtan Desmarest (March 6, 1784 – June 4, 1838) was a French zoologist and author. He was the son of Nicolas Desmarest and father of Eugène Anselme Sébastien Léon Desmarest. Desmarest was a disciple of Georges Cuvier and Alexandre Brongniart, and in 1815, he succeeded Pierre André Latreille to the professorship of zoology at the .  In 1820 he was elected to the Académie Nationale de Médecine.

Desmarest published  (1805),  (1825),  (1820) and  (1816–30, with André Marie Constant Duméril).

The brown algae Desmarestia is named in honour of Desmarest, as well as the family (Desmarestiaceae) — and in turn, the order (Desmarestiales) — of which the genus is the type species.

Note
Certain works by Desmarest are cited in 19th- and 20th-century references and attributed to A. G. Demarest which would apparently be a perpetuating error.