Jan Gerritze Bantjes (Beaufort West, July 8, 1817 – Potchefstroom, March 10, 1887) was a Voortrekker and was also the Secretary General of the Voortrekkers.
He was the author of the treaty between the Zulu king Dingane kaSenzangakhona and the Voortrekkers under Andries Pretorius.