The 2020 Nagorno-Karabakh ceasefire agreement was an armistice agreement that ended the Second Nagorno-Karabakh War. It was signed on 9 November by the President of Azerbaijan Ilham Aliyev, the Prime Minister of Armenia Nikol Pashinyan and the President of Russia Vladimir Putin, and ended all hostilities in the Nagorno-Karabakh region from 00:00, on 10 November 2020 Moscow time. The president of the self-declared Republic of Artsakh, Arayik Harutyunyan, also agreed to an end of hostilities.

The Second Nagorno-Karabakh War was an armed conflict in 2020 that took place in the disputed region of Nagorno-Karabakh and the surrounding occupied territories. It was a major escalation of an unresolved conflict over the region, involving Azerbaijan, Armenia and the self-declared Armenian breakaway state of Artsakh. The war lasted for 44 days and resulted in Azerbaijani victory, with the defeat igniting anti-government protests in Armenia. Post-war skirmishes continued in the region, including substantial clashes in 2022.