Chrétien Géofroy Nestler, name also given as Christian Gottfried Nestler (1 March 1778, Strasbourg – 2 October 1832), was a botanist and pharmacist from Alsace.
He studied under Louis Claude Richard in Paris, and in 1806–1810 served as a military pharmacist.
In 1816 he was appointed director of the botanical garden at Strasbourg.
[3] As a taxonomist, he described a number of species within the genus Potentilla.
[4] The genus Nestlera (family Asteraceae) was named in his honor by Kurt Sprengel.