Sir Henry Edward Landor Thuillier CSI FRS (10 July 1813 – 6 May 1906) was Surveyor General of India. Under his direction, 796,928 square miles of India were surveyed, including difficult mountainous, forest, and desert regions, often for the first time. He was responsible for the printing in 1854 of the first postage stamps valid throughout India. Thuillier was elected a fellow of the Royal Society in 1869, made a CSI in May 1870, and knighted in June 1879.
