Brigadier Pieter de Waal CB CBE (31 December 1899, Zeerust – June 1977, Wynberg)[2] was a South African military commander.

He served as Deputy Chief of the General Staff from 1940 until 1944, when he was seconded to the staff of General Dwight Eisenhower as South African Liaison Officer[3] to Supreme Headquarters Allied Expeditionary Forces in England for the rest of World War II.

After the war, Brig de Waal served as Quartermaster-General from 1945 to 1951, and as Naval and Marine Chief of Staff from 1951 to 1952.

He served as Military & Naval Attaché to the US from 1953 to 1954[3] On 1 January 1946, Brigadier de Waal was made a Companion of the Order of the Bath.

(P.179910V) South African Staff Corps (V).On 1 January 1944, Brigadier de Waal was made a Commander of the Order of the British Empire.