George Henri Anne-Marie Victor count de Villebois-Mareuil or by his shortened name George de Villebois-Mareuil was a former colonel in the French infantry who fought and died on the side of the Boers during the Second Anglo-Boer War.
He was the first of only two foreign volunteers to be given the rank of Major-General in the armed forces of the Boer Republics. The other being his second in command Yevgeny Maximov (1849–1904) after the death of Villebois-Mareuil.