Robert Wight MD FRS FLS (6 July 1796 – 26 May 1872) was a Scottish surgeon in the East India Company, whose professional career was spent entirely in southern India, where his greatest achievements were in botany – as an economic botanist and leading taxonomist in south India.
He contributed to the introduction of American cotton.
As a taxonomist he described 110 new genera and 1267 new species of flowering plants.
He employed Indian botanical artists to illustrate a large number of plants collected by himself and Indian collectors he trained.
Some of these illustrations were published William Hooker in Britain, but from 1838 published a series of illustrated works in Madras including the uncoloured, six-volume Icones Plantarum Indiae Orientalis (1838–53) and two hand-coloured, two-volume works, the Illustrations of Indian Botany (1838–50) and Spicilegium Neilgherrense (1845–51).
By the time he retired from India in 1853 he had published 2464 illustrations of Indian plants.