German watchmaker and bryologist (1865–1935).
Leopold Loeske (24 October 1865, Hohensalza – 29 March 1935, Bad Harzburg) was a German watchmaker and amateur bryologist. A skilled watchmaker, he was self-taught as a bryologist, collecting moss specimens in Germany, Switzerland and the French Alps during his career. Following World War I, he spent eight years working as a correspondent for a commercial institution due to financial struggles. He joined the British Bryological Society in 1934. He died at Bad Harzburg while on a collection excursion in the Harz Mountains. The moss genera Loeskeobryum (M.Fleisch. ex Broth. 1925) and Loeskypnum.