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In computing

Watchdog timer, a device in computer systems

Event Log Watchdog, a freeware software program

Watchdog Event Log, created by Windows operating systems using the .WDL extension

Consumer protection

An informal name given to consumer protection organisations or campaigners. See: List of consumer organizations

''Watchdog'' (TV series)

Watchdog journalism, any media (including blogs) providing consumer watchdog activities

Transit watchdog

Other

Nuclear watchdog, synonymous with the International Atomic Energy Agency

Government agencies that police other agencies, such as the Government Accountability Office investigations of the Department of Defense

Citizens' groups that monitor and report on government, corporate, and other abuses, such as Human Rights Watch

Watchdog (comics) is the super-powered Welsh Corgi belonging to Robert Reynolds, the Sentry in the Marvel Comics 616 universe.