German botanist (1763-1797).
Johann Ludwig Christian Koelle (18 March 1763 – 30 July 1797) was a German physician and botanist born in Münchberg. During his career he served as a "Medicinalrath" (medical counselor) and also worked as a county physician in Bayreuth. He was a member of the Regensburgische Botanische Gesellschaft (Botanical Society of Regensburg). The plant genus Koellia (family Lamiaceae) is named in his honor.