Non-Aligned Movement
- No permanent headquarters; rotating chair and coordination bureau
Nordic Council of Ministers
- Ved Stranden 18, 1061 Copenhagen K, Denmark
North Atlantic Treaty Organization
- Boulevard Léopold III, 1110 Brussels, Belgium
Organization of Arab Petroleum Exporting Countries
- P.O. Box 20501, Safat 13066, Kuwait
Organisation of Islamic Cooperation
- P.O. Box 5925, Jeddah 21432, Saudi Arabia
Secretariat of the Pacific Community
- 95 Promenade Roger Laroque, B.P. D5, 98848 Nouméa Cedex, New Caledonia