Mohamed Abdelaziz ben Khalili ben Mohamed al-Bachir Er-Rguibi (; 17 August 1947 – 31 May 2016) was the 3rd Secretary General of the Polisario Front, from 1976, and the President of the Sahrawi Arab Democratic Republic from 1982, until his death in 2016.

Biography

Abdelaziz was born in Marrakesh or in Smara into a Sahrawi family of an eastern Reguibat subtribe, Abdelaziz's father lived in Morocco with a part of his family and was a member of the Royal Advisory Council for Saharan Affairs. His father held two transport licences in Morocco for buses serving Rabat–Casablanca–Essaouira. The first license was given to him by Hassan II in 1983 and the second by Mohammed VI in 2002. lawyer of many Sahrawi human rights activists such as Aminatou Haidar or Naama Asfari, and former "disappeared" in Moroccan prisons between 1976 and 1991.

As a student in the Mohammed V University of Rabat, he gravitated towards Sahrawi nationalism, and became one of the founding members of the Polisario Front, a Sahrawi independence movement in Western Sahara with strong Arab socialist ideas which launched a few attacks against Spanish colonialism in the Spanish Sahara in 1973. Shortly after Spain relinquished control of the area to Mauritania and Morocco in the 1975 Madrid Accords, Polisario declared the Sahrawi Arab Democratic Republic (SADR), leading to the Western Sahara War (1975–1991). From 1976 until his death, Abdelaziz was Secretary-General of the Polisario Front, replacing Mahfoud Ali Beiba, who had taken the post as interim Secretary-General after El-Ouali Mustapha Sayed was killed in action in Mauritania.

Abdelaziz was also the first president of the SADR from August 1982,

He lived in exile in the Sahrawi refugee camps in the Tindouf Province of western Algeria. Under Abdelaziz, Polisario continued its guerrilla war against Morocco and Mauritania, until the latter's withdrawal in 1979 and the construction of the Moroccan Wall in 1980s. With the wall limiting attacks, Abdelaziz turned to diplomatic measures to secure SADR's future. When the African Union (AU) replaced the OAU in 2001, Abdelaziz was elected as AU vice-president at its first summit.

In December 2005, as leader of the Polisario Front, he received the Spanish Human Rights Association's "Human Rights International Prize".

Abdelaziz died of lung cancer on 31 May 2016, aged 68, and was buried in the Free Zone town of Bir Lehlou. and steered the Polisario and the Sahrawi republic towards political compromise, notably in backing the United Nations' Baker Plan in 2003.

There was some criticism against Abdelaziz from within the Polisario for preventing reforms inside the movement, and for insisting on a diplomatic course which had gained few concessions from Morocco, rather than re-launching the armed struggle favored by many within the movement. The only supposedly opposition group is the Front Polisario Khat al-Shahid, which states that it wants to continue with militant attacks.