The Club de Berne (French pronunciation: [klœb də bɛʁn], lit. 'Bern Club', CdB) is an intelligence sharing alliance between the intelligence services of the 27 states of the European Union (EU), Norway and Switzerland, named after the city of Bern. It is an institution based on voluntary exchange of secrets, experience and views as well as discussing problems. Austria is excluded from the CdB because of its tolerance of espionage that does not target the country itself. The Club has existed since 1971 and has no secretariat and takes no decisions.

The Counter Terrorism Group (CTG) is an offshoot of the Club and shares terrorism intelligence. It provides threat assessments to EU policy makers and provides a form for expert collaboration. The Group was created after 9/11 to further intelligence sharing cooperation between European intelligence structures. The CTG, like the Club, is outside of the EU's institutions but communicates with them via the participation of the EU Intelligence Analysis Centre (EU INTCEN), a branch of the European External Action Service. Although it is outside the EU, its presidency rotates inline with that of the EU Council presidency and acts as a formal interface between the Club de Berne and the EU.