Major-General Petrus Jacobs SSA SM (1910-1967) was a South African military commander. He joined the South African Army as a part-time Citizen Force soldier in 1931 in the Prince Alfreds Guards and later became a full-time Permanent Force member. He served in World War II with 2 SA Division and with the Wits Rifles in Italy. Maj Gen Jacobs was Army Chief of Staff from 1963 to 1965.