Christian von Steven (Христиан Христианович Стевен - Christian Christianowitsch Stewen) (19 January 1781, Fredrikshamn, Finland- 30 April 1863, Simferopol, Crimea) was a Ukrainian-Russian botanist and entomologist of Swiss origin.
Steven studied medicine at Saint Petersburg University before working at a centre for silk production in the Caucasus where he commenced as an assistant, progressing to inspector (1806). In 1812, he participated in the creation of a Nikitsky Botanical Garden at Nikita in the Crimea, which he directed from 1824. From 1826 to 1851, he directed a Magnanery. In 1815, he was elected a corresponding member of the Royal Swedish Academy of Sciences.