Terrorist organisations

This is a list of designated terrorist groups by national governments, former governments, and inter-governmental organizations, where the proscription has a significant effect on the group's activities. Many organizations that are accused of being a terrorist organization deny using terrorism as a military tactic to achieve their goals, and there is no international consensus on the legal definition of terrorism.

This listing does not include unaffiliated individuals accused of terrorism, which are considered under lone wolf terrorism. This list also excludes groups that might be widely considered terrorist, but who are not officially so designated according to the criteria specified above.

This list is not all inclusive. For more inclusive lists, including people, entities (corporations), and specific vehicles, refer to lists under Process of designation.

The list includes references to organisations associated with Al-Qaeda by the United Nations.

= officially designated as terrorist

Below is the list of organizations that have officially been designated as terrorist in the past, by the respective parties, but have since been delisted.

Among the countries that publish a list of designated terrorist organizations, some have a clear established procedure for listing and delisting, and some are opaque. The Berghof Foundation argues that opaque delisting conditions reduce the incentive for the organization to abandon terrorism, while fuelling radicalism.

Since 2002, the Australian Government maintains a list of terrorist organizations under the Security Legislation Amendment (Terrorism) Act 2002. Listing, de-listing and re-listing follows a protocol that mainly involves the Australian Security Intelligence Organisation and the Attorney-General's Department.

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