Isaac Anderson-Henry (né Anderson, 1800– 21 September 1884) was a Scottish lawyer and horticulturist. A lawyer in practice in Edinburgh, he retired from law practice in 1861 upon his wife's inheritance of estates in Woodend, Perthshire, when he changed his name to Anderson-Henry, enabling him to pursue horticulture. He was president of the Botanical Society of Edinburgh (1867-8), and collected pants from right around the world, including the Andes, north-western Himalayas, and New Zealand. He studied plant hybridisation in a time that was before the rediscovery of genetics, and was a sometime correspondent of Charles Darwin.