The European Anti-Fraud Office is a body mandated by the European Union (EU) with protecting the Union's financial interests. It was founded on 28 April 1999, under the European Commission Decision 1999/352. Its tasks are threefold:to fight fraud affecting the EU budget; investigate corruption by staff of EU institutions; and develop anti-fraud legislation and policies.

The European Union (EU) is a supranational political and economic union of 27 member states that are located primarily in Europe. The Union has a total area of 4,233,255 km2 (1,634,469 sq mi) and an estimated total population of over 448 million. The EU has often been described as a sui generis political entity combining the characteristics of both a federation and a confederation.