CIES
- Battle of Cíes Islands (1590)
- CIE (disambiguation)
- Comparative and International Education Society
- Confederation of Indian Industry
- Council for International Exchange of Scholars
- Cíes Islands
- Department of National Intelligence and Security (South Africa)
- Heidelberg Appeal
- ISCTE – University Institute of Lisbon
- Institution of Engineers in Scotland
- International Centre for Sports Studies
- Korea Federation for Environmental Movements
- List of Florida State University people
- List of environmental research institutes
- List of retired Spanish Navy ships
- Regional Center for Disaster Information for Latin America and the Caribbean
- The Dhahan Prize
- Visa policy of Hong Kong