The headquarter of International Atomic Energy Agency (IAEA) are situated at

The headquarter of International Atomic Energy Agency (IAEA) are situated at Vienna. The IAEA has its headquarters in Vienna, Austria. The IAEA has two "Regional Safeguards Offices" which are located in Toronto, Canada, and in Tokyo, Japan. The IAEA also has two liaison offices which are located in New York City, United States, and in Geneva, Switzerland.