The International Council of Nurses (ICN) is a federation of more than 130 national nurses associations. It was founded in 1899 and was the first international organization for health care professionals. It is headquartered in Geneva, Switzerland.

Nursing is a health care profession that "integrates the art and science of caring and focuses on the protection, promotion, and optimization of health and human functioning; prevention of illness and injury; facilitation of healing; and alleviation of suffering through compassionate presence". Nurses practice in many specialties with varying levels of certification and responsibility. Nurses comprise the largest component of most healthcare environments. Shortages of qualified nurses are found in many countries.