Hugh Francis Clarke Cleghorn (1820-1895) was a Madras-born Scottish physician who worked in India and pioneered as a botanist and in forest conservancy. Cleghorn, sometimes known as the father of scientific forestry in India, was instrumental in the creation of the forest department in the Presidency of Madras. The plant genus Cleghornia was named after him by the botanist Robert Wight. Cleghorn returned to Scotland in 1869 and developed forestry education in Scotland and established a lecturership at the University of Edinburgh