Constitution Protection Office

{{short description|Hungarian governmental intelligence agency}}

{{refimprove|date=September 2019}}

Image:Emblem of the Constitution Protection Office of Hungary.svg and the shield itself the Arpad stripes of ancient Hungary. Its slogan means: "The homeland before all!"]]

The Constitution Protection Office{{cite web|url= http://www.tol.org/client/article/25103-hungarian-mep-spying-for-russia-may-lose-immunity.html|title=Hungarian MEP 'Spying' for Russia May Lose Immunity|publisher=Transitions Online|date=15 October 2015|access-date=19 October 2015}} ({{Langx|hu|Alkotmányvédelmi Hivatal}}, "AH") is a Hungarian internal security intelligence agency, formerly known as {{Lang|hu|Nemzetbiztonsági Hivatal}} (En. Office of National Security). Its primary responsibilities are: counterintelligence, anticorruption, economic security and related proactive measures. The AH also leads investigations against organized crime and deals with (mainly internal) threats against society (such as subversion).

AH has been active since 2010.