The Centre for Democratic Institutions (CDI) supports the efforts of democracies in the Asia-Pacific region to strengthen their political systems. It provides training, technical assistance and peer support for parliamentarians, political party organisers and emerging leaders in Southeast Asia and the South Pacific, with a particular focus on Indonesia, Papua New Guinea, Solomon Islands, Vanuatu and Fiji. CDI sponsors research and publications on political change and democratic governance.

Established in 1998, CDI is funded by the Australian Government. The Centre is based in the College of Asia and the Pacific at the Australian National University (ANU) in Canberra.