Alexander Caseby (19 January 1898 – 14 May 1991), was a Scottish missionary who was known for serving as the head of forestry and horticulturalist for the Livingstonia mission, headed by Robert Laws, in Nyasaland from 1919 to 1933. While focused or horticulture, with his wife, he started a leper village in Malawi. He concentrated specifically in promoting western horticultural practices within the natives of Livingstonia and attempting to improve their agricultural resources.