The Tripoli Revolutionaries Brigade or Free Tripoli Guardian was a unit of the National Liberation Army of Libya created during the Libyan Civil War that merged into the Tripoli Protection Force. Originally formed in April 2011 in the opposition stronghold of Benghazi, it later relocated to the Nafusa Mountains, then the closest frontline to Tripoli, before advancing into the city itself in August.

The National Liberation Army, officially the National Liberation Armed Forces of the Free Libyan Republic, formerly known as the Free Libyan Army, was a Libyan military organisation affiliated with the National Transitional Council, which was constituted during the First Libyan Civil War by defected military members and civilian volunteers, in order to engage in battle against both remaining members of the Libyan Armed Forces and paramilitia loyal to the rule of Muammar Gaddafi. Its self proclaimed chief commander was General Khalifa Haftar, although the National Transitional Council preferred to appoint Major General Abdul Fatah Younes Al-Obeidi as its commander-in-chief. It had prepared for some time in portions of Eastern Libya controlled by the anti-Gaddafi forces for eventual full-on combat in Western Libya against pro-Gaddafi militants, training many men before beginning to go on the offensive. They have battled for control of Benghazi, Misrata, Brega, Ajdabiya, Zawiya and Ra's Lanuf as well as several towns in the Nafusa Mountains. They finally began the Battle for Tripoli in August 2011 when they attacked from the west of the city, as well as fomenting an internal uprising on 20 August.