The International Civil Defence Organisation (ICDO) is an intergovernmental organisation whose objective is to contribute to the development by States of structures for ensuring the protection and assistance of populations, and for safeguarding property and the environment in the face of natural and man-made disasters.

These structures, which are generally known as civil protection, civil defence or civil safety, are all concerned with the management of emergency situations. The ICDO federates the national structures established by States for this purpose with the aim of favouring cooperation and mutual solidarity amongst them.