Sayyid Hassan Nasrallah (born August 31, 1960; Arabic: حسن نصرالله‎ Hassan Nasrallah) is the current and third Secretary General of the Lebanese Islamist party and paramilitary organization Hezbollah. Nasrallah became the leader of Hezbollah after Israel assassinated the movement's leader Abbas al-Musawi in 1992. Hezbollah's military campaigns of the late 1990s were the main factors that led to the Israeli decision to withdraw from Southern Lebanon in 2000.

Hassan Nasrallah was born the ninth of ten children in East Beirut's Bourj Hammoud neighborhood on August 31, 1960. His father, Abdul Karim, was born in Bazouriyeh, a village in Jabal Amel (South Lebanon) located near Tyre. Although his family was not particularly religious, Hassan was interested in theological studies. He attended an-Najah school and later a public school in Sin el-Fil (Christian area) Beirut.

In 1975, the civil war in Lebanon forced the family to move to their ancestral home in Bassouriyeh, where Hasan Nasrallah completed his secondary education at the public school of Sour (Tyre). Here he joined the Amal Movement, a Lebanese Shi'a political group.