Osbat al-Ansar or Asbat an-Ansar (Arabic: عصبة الأنصار, romanized: ʿUṣbat al-ʾAnṣār, "League of the Partisans") is a Sunni fundamentalist group established in the early 1990s, with a primary base of operations in the Palestinian camp of Ain al-Hilweh refugee camp near Sidon,[2] which claims professing the Salafi form of Islam and the overthrow of the Lebanese-dominated secular government.

It is on the United States' list of terrorist organizations for alleged connections with Osama bin Laden's al-Qaeda, and the American administration decided to freeze all assets of Osbat al-Ansar following the attacks on September 11th, 2001.

[2] Osbat al-Ansar is estimated to have less than 2000 members, mostly Lebanese, with a primary base of operations in the Ain al-Hilwah refugee camp near Sidon in southern Lebanon.

Asbat al-Ansar has been reluctant to involve itself in operations in Lebanon due in part to concerns over losing its safe haven in the Ain al-Hilwah refugee camp.

[17] In 2001, Daniel Ahmad Samarji, and Bilal Ali Othman, were arrested in the northern city of Tripoli for planning terrorist acts, illegal dealing in weapons of war and discharging firearms.