ODA: official development assistance
OECD: Organization for Economic Cooperation and Development
OECS: Organization of Eastern Caribbean States
OHCHR: Office of the United Nations High Commissioner for Human Rights
OIC: Organization of the Islamic Conference
OIF: International Organization of the French-speaking World
ONUB: United Nations Operation in Burundi
OOF: other official flows
OPANAL: Agency for the Prohibition of Nuclear Weapons in Latin America and the Caribbean
OPCW: Organization for the Prohibition of Chemical Weapons