Caspar Georg Carl Reinwardt (5 June 1773 in Lüttringhausen – 6 March 1854 in Leiden) was a Prussian-born Dutch botanist. He is considered to be the founding father of Bogor Botanical Garden in Indonesia.
During his early life in 1787 he became an apprentice of an alchemist, in an Amsterdam laboratory where his brother worked. He came in contact with several scientist, including the botanist Gerardus Vrolik. He had his education at the Athenaeum where he successfully engaged in the study chemistry and botany.
During the French occupation of Netherlands he served as a professor of natural history at the University of Harderwijk from 1800 to 1808. He gradually become associate professor of chemistry and pharmacy. In 1808 he appealed to king Louis Bonaparte and was offered to work as director of the "to be built" botanical, zoological garden and museums. In 1808 he became member of the Royal Institute of the Netherlands. And in 1810 just before the king returned to France, he became professor of natural history in Amsterdam. After the French was defeated in the Napoleonic war, the Netherlands are eager to make contact with its colony. In 1816 he was offered a position as head of agriculture, arts and science of the colony, and journeyed to the East Indies where he conducted various botanical investigations throughout the archipelago. Reinwardt was the founder (1817) and first director of botanic garden at Bogor (Buitenzorg) in Java. There he gathered and cultivated various flora from the surrounding islands such as the Moluccas, Timor and Sulawesi.