Rear Admiral Jacob Andries Cornelius 'Jaap' Weideman (1936âÂÂ1996) was a South African Navy officer.
He joined the Navy in 1954 and in 1955 attended the South African Military Academy.
In 1968 he commanded .
In 1970 he became the first South African to qualify as a submariner and became the first Officer Commanding of .
In 1982 he was appointed as Inspector General (Navy).