Field Commandant Christian Jacobus Groepe (c. 1789–1886) was a military leader of the Khoi people of Kat River, Cape Colony, in the nineteenth century.
He is first recorded as a wealthy Khoikhoi businessman, land-owner and community leader among the Gonaqua Khoi people of the Kat River Settlements, near the Eastern Cape frontier.
Thomas Pringle records Groepe's difficulties with the colonial clergy who refused to conduct his marriage on the excuse that his bride could not recite the Catechism correctly in English.
[4] A wide range of similar such grievances eventually led him and his colleague Andries Botha to openly sympathize with those of the "Kat River" Khoi who joined the rebellion of 1850.
Opponents accused it of being a prejudiced witch-hunt, and several powerful Cape figures such as Andries Stockenstrom declared strong public support for Groepe and his co-accused.