Jean René Constant Quoy (November 10, 1790 - July 4, 1869) was a French zoologist.
Along with Joseph Paul Gaimard he served as naturalist aboard La Coquille under Louis Isidore Duperrey during its circumnavigation of the globe (1822-25), and the Astrolabe (1826-1829) under the command of Jules Dumont d'Urville. During this voyage they discovered the now extinct giant skink of Tonga Tachygia microlepis.
The following genera or species were named in his honor :