European Organization of Supreme Audit Institutions (EUROSAI) is a European intergovernmental organization whose members are supreme audit institutions in their respective countries. It is one of the seven regional working groups of the International Organization of Supreme Audit Institutions (INTOSAI).
EUROSAI comprises 50 members that include the Supreme Audit Institutions of 49 countries and the European Court of Auditors.
Its parent organisation INTOSAI comprises 191 full members: the Supreme Audit Institutions (SAIs) of 190 countries and the European Court of Auditors (and 4 associate members) and is listed as a support organisation of the United Nations.