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 Alfred's Guard[1]: 93  and later became a full-time Permanent Force member.

He served in World War II with the 2nd South African Division and with Wits Rifles in Italy.

[1]: 93 Maj Gen Jacobs was Army Chief of Staff from 1963 to 1965.

[2][1]: 93