Duncan Lewis

Professor Duncan Lewis AO, DSC, CSC serves as Professor in the Practice of National Security at the Australian National University (ANU) National Security College since June 2021. A distinguished leader with a 47-year career in the Australian Government, he previously held roles including Director General of Security and Head of ASIO, Secretary of the Department of Defence, National Security Advisor to two Prime Ministers, and Australian Ambassador to Belgium, Luxembourg, the European Union, and NATO.

• Education: British Army Staff College graduate, United States Army War College graduate
• Current roles: Non-executive director at Thales Australia, Senior Non-Resident Fellow at the US Studies Centre, Chair of Painaustralia

His expertise spans Australian foreign policy, diplomacy, and national security policy. He holds additional affiliations with the Australian Institute of Company Directors and fluency in Indonesian.

Scientific Awards:

• Officer of the Order of Australia (AO)
• Distinguished Service Cross (DSC)
• Conspicuous Service Cross (CSC)