مكتب الأمم المتحدة لتنسيق الشؤون الإنسانية
The United Nations Office for the Coordination of Humanitarian Affairs (OCHA) is a United Nations (U.N.) body established in December 1991 by the General Assembly to strengthen the international response to complex emergencies and natural disasters. It is the successor to the Office of the United Nations Disaster Relief Coordinator (UNDRO).