Konstantin Bernhard von Voigts-Rhetz (16 July 1809 – 14 April 1877) was a Prussian general who served in the Austro-Prussian War and the Franco-Prussian War.Voigts-Rhetz entered the Prussian 9th Infantry Regiment in 1827 and was made an officer in 1829. Between 1833 and 1835 Voigts-Rhetz attended the Prussian Military Academy. In 1837 he was attached to the topography division.