The Hague Hijacking Convention (formally the Convention for the Suppression of Unlawful Seizure of Aircraft) is a multilateral treaty by which states agree to prohibit and punish aircraft hijacking.^[1] The convention does not apply to customs, law enforcement or military aircraft, thus it applies exclusively to civilian aircraft. The convention only addresses situations in which an aircraft takes off or lands in a place different from its country of registration. The convention sets out the principle of aut dedere aut judicare—that a party to the treaty must prosecute an aircraft hijacker if no other state requests his or her extradition for prosecution of the same crime.

The convention was adopted by the International Conference on Air Law at The Hague on 16 December 1970.^[1] It came into force on 14 October 1971^[1] after it had been ratified by 10 states. As of 2013, the convention has 185 state parties.

The convention has 185 state parties, which includes 183 UN members plus the Cook Islands and Niue. The 10 UN member states that are not parties to the treaty are:

Of these 10 states, the convention has been signed but not ratified by Burundi.

In 2010 in Beijing, the Protocol Supplementary to the Convention for the Suppression of Unlawful Seizure of Aircraft was adopted. The Protocol makes amendments and additions to the original convention. As September 2018, the Protocol has been ratified by 27 states. It entered into force on 1 January 2018.

• Tokyo Convention
• Convention for the Suppression of Unlawful Acts against the Safety of Maritime Navigation
• Beijing Convention
• LOT Flight 165 hijacking#Trial