Karl Otto von Seemen (2 August 1838 - 23 June 1910) was a German botanist and horticulturalist. He is noted for his studies of plants in the south of Africa.
According to the International Plant Names Index (IPNI) some 109 plant names were published by Seemen, including species of Castanopsis, Fagus, Pyrola, Quercus and Salix
1903. Salices Japonicæ, &c. (Leipzig, Gebrüder Borntraeger) 83 pp.