Between 1,000 and 3,500 Palestinians are killed in the Tel al-Zaatar massacre, one of the bloodiest events of the Lebanese Civil War.

Palestinians are an Arab ethnonational group native to the Levantine region of Palestine. They represent a highly homogeneous community who share one cultural and ethnic identity, speak Palestinian Arabic and share close religious, linguistic, and cultural ties with other Levantine Arabs.

The Tel al-Zaatar massacre was a massacre of approximately 1500 Palestinians and Lebanese Muslims in the Tel al-Zaatar refugee camp in Beirut, Lebanon on 12 August 1976. The camp had been under siege since January 1976 by Lebanese Christian militias of the Lebanese Front. The attack on al-Zaatar was part of a wider campaign to expel Palestinians, especially those affiliated with the Palestine Liberation Organization (PLO).

The Lebanese Civil War was a multifaceted armed conflict that took place from 1975 to 1990. It resulted in an estimated 150,000 fatalities and led to the exodus of almost one million people from Lebanon.