Rear Admiral (Junior Grade) Karl Wiesner PS MMM is a retired South African Navy officer, who served as Director Maritime Warfare.

[1][2] He attended the United States Naval War College in Newport, Rhode Island where he earned a diploma in National Security and Strategy and was awarded the Vice Admiral Doyle prize for International Law and Peacekeeping.

[4] He also commanded the Warrior class strike craft SAS Job Masego and SAS Kobe Coetsee.

He is currently the chief commercial operations officer of South African Shipyards.

This biographical article related to the South African military is a stub.