World Organisations - O

The Organisation for Economic Co-operation and Development is an intergovernmental economic organisation with 35 member countries, founded in 1960 to stimulate economic progress and world trade. It is a forum of countries describing themselves as committed to democracy and the market economy, providing a platform to compare policy experiences, seeking answers to common problems, identify good practices and coordinate domestic and international policies of its members. Most OECD members are high-income economies with a very high Human Development Index (HDI) and are regarded as developed countries. OECD is an official United Nations Observer.

The Organization for Security and Co-operation in Europe (OSCE) is the world's largest security-oriented intergovernmental organization. Its mandate includes issues such as arms control, promotion of human rights, freedom of the press, and fair elections. It employs around 3,460 people, mostly in its field operations but also in its secretariat in Vienna, Austria and its institutions. It has its origins in the 1975 Conference on Security and Co-operation in Europe (CSCE) held in Helsinki, Finland.

The OSCE is concerned with early warning, conflict prevention, crisis management, and post-conflict rehabilitation. Its 57 participating states are located in Europe, northern and central Asia, and North America. The participating states cover much of the land area of the Northern Hemisphere. It was created during the Cold War era as an East–West forum.

Organisation for Economic Co-operation and Development headquarters located in Paris, France.

The Organisation for Economic Co-operation and Development is an intergovernmental economic organisation with 35 member countries, founded in 1960 to stimulate economic progress and world trade. It is a forum of countries describing themselves as committed to democracy and the market economy, providing a platform to compare policy experiences, seeking answers to common problems, identify good practices and coordinate domestic and international policies of its members. Most OECD members are high-income economies with a very high Human Development Index (HDI) and are regarded as developed countries. OECD is an official United Nations Observer.

Official languages of OECD is English-French.

The Organisation for Economic Co-operation and Development is an intergovernmental economic organisation with 35 member countries, founded in 1960 to stimulate economic progress and world trade. It is a forum of countries describing themselves as committed to democracy and the market economy, providing a platform to compare policy experiences, seeking answers to common problems, identify good practices and coordinate domestic and international policies of its members. Most OECD members are high-income economies with a very high Human Development Index (HDI) and are regarded as developed countries. OECD is an official United Nations Observer.

The Organisation of Islamic Cooperation is an international organization founded in 1969, consisting of 57 member states, with a collective population of over 1.6 billion as of 2008. The organisation states that it is "the collective voice of the Muslim world" and works to "safeguard and protect the interests of the Muslim world in the spirit of promoting international peace and harmony".

The OIC has permanent delegations to the United Nations and the European Union. The official languages of the OIC are Arabic, English, and French.

The Organisation for the Prohibition of Chemical Weapons (OPCW) is an intergovernmental organisation, located in The Hague, Netherlands.

The organisation promotes and verifies the adherence to the Chemical Weapons Convention which prohibits the use of chemical weapons and requires their destruction. The verification consists both of evaluation of declarations by member states and on-site inspections.

The organisation was awarded the 2013 Nobel Peace Prize because it had, with the Chemical Weapons Convention, "defined the use of chemical weapons as a taboo under international law" according to Thorbjørn Jagland, Chairman of the Norwegian Nobel Committee.