German plantation owner from Karlsruhe who originally trained in law. He emigrated to Guatemala (c. 1878) where he operated a coffee plantation. Most of his botanical collections were made in Alta Verpaz, where he discovered many new taxa including type material of Zamia tuerckheimii Donn. Sm., that was later named after him. In addition to naming his undescribed new taxa, John Donnell Smith, based at the Smithsonian Institution in Washington, was also responsible for distributing much of his duplicate Guatemalan material. Hans von Türckheim was later in the Dominican Republic (1909-1910) before returning to Karlsruhe. His plant collections include cryptogams and the bryophyte genus Tuerckheimia Brotherus in the Pottiaceae was named in his honour.