Karl Hermann Bitter (27 February 1813 – 12 September 1885) was a Prussian statesman and writer on music.

He was born at Schwedt, Province of Brandenburg, and studied law and cameralistics at Berlin and Bonn.

He served as the plenipotentiary of Prussia on the Danube Commission from 1856 to 1860, was prefect of the Department of Vosges during the Franco-Prussian War.

It stated that Hamburg was ready to accede to the Customs Union with all its territory, but excluding a permanent free port district which it specified.

[1][2] He reestablished the stability of the Prussian finances, and took a prominent part in bringing the railroads of Germany under government control.