Carl Friedrich Heinrich Credner (13 March 1809 – 28 September 1876) was a German geologist.
He studied at the universities of Freiberg and Göttingen, and in 1836 was appointed by the Ducal Government warden of the mint.
In 1858, he was appointed by the government of Hanover superior mining councilor and reporting councilor to the finance ministry, in which capacity he had under his supervision all the Hanoverian mining works, including the important ones of the Harz.
As a scientist, Credner was known for his study of the geology of those regions of Germany connected with his duties in the mining industry.
He discovered a compound of oxides of copper and manganese, called in his honor Crednerite.