Simon Binnendijk (26 March 1821, Leiden – 28 October 1883, Buitenzorg) was a Dutch gardener and botanist.
He received botanical training under Willem Hendrik de Vriese (1806–1862) in Leiden.
During his tenure in the East Indies, he participated on a botanical expedition to the Moluccas.
[1] With Johannes Elias Teijsmann (1808–1882), he was co-author of "Plantae novae in Horto Bogoriensi cultae" (1862) and "Catalogus plantarum quae in Horto botanico bogoriensi coluntur" (1866).
[2] With Teijsmann, he described the genera Capellenia, Eusideroxylon and Gonystylus, as well as numerous botanical species.