Osman Digna (Arabic: عثمان دقنة‎)(c. 1840 – 1926) was a follower of Muhammad Ahmad, the self-proclaimed Mahdi, in Sudan, who became his best known military commander during the Mahdist War. As the Mahdi's ablest general, he played an important role in the fate of General Charles George Gordon and the loss of the Sudan to Egypt. In Britain Osman became a notorious figure, both demonised as a savage and respected as a warrior.