Karl Wilhelm Letzner

Karl Wilhelm Letzner (13 June 1812 – 15 December 1889) was a Silesian high school teacher and entomologist.

He excelled and was made first decurio in 1826 and began to work as an assistant to the blind teacher Johann Georg Knie who was producing a directory of places in Silesia.

He began to teach from 1834 and in 1838 he became a member of the entomological section of the Silesian Society of Native Culture.

He was especially interested in the beetles and collected extensively from Ustroń in the Silesian Beskids and the Praděd massif in the Hrubý Jeseník Mountains.

He published a series of annual summaries on the beetles of the region under the title Über den Status der Coleopteren-Arten Schlesiens Ende des Jahres.