Eurojust (also spelled capitalised as EUROJUST) is an agency of the European Union (EU) dealing with judicial co-operation in criminal matters. The seat of Eurojust is in The Hague.

Established in 2002, it was created to improve handling of serious cross-border and organized crime by stimulating investigative and prosecutorial co-ordination among agencies of the EU Member States. Eurojust is composed of a College formed of 28 National Members—experienced judges, prosecutors, or police officers of equivalent competence from each EU Member State. The terms and duties of the members are defined by the state that appoints them. Eurojust also co-operates with third states and other EU bodies such as the European Judicial Network, Europol, and OLAF.