Mohammed El Senussi (Arabic: محمد السنوسي; Sayyid Mohammed er-Rida bin Seyyed Hasan er-Rida el-Mahdi es-Senussi; occasionally spelled as "...Al Senussi", "as-Senussi", "al/el-Senussi"; born 20 October 1962) is the son of Crown Prince Hasan as-Senussi of Libya, and of Crown Princess Fawzia bint Tahir Bakeer.

[3][4] Colonel Muammar Gaddafi overthrew Mohammed El Senussi's grand-uncle King Idris and his father the Crown Prince on 1 September 1969 in the Al Fateh Revolution.

[10] During this time, "the Senussiya brought law and order, curbed raiding, encouraged peaceful trade, and promoted agriculture in a remarkable, civilizing mission amid highly unpromising surroundings.

Despite fighting with Ottoman support against the European colonizers, Sharif and the Senussi order struggled to oppose French, British, and Italian expansion in the Sahara.

Article 44 of the 1951 Constitution states:[11] subject to what has been provided in Article 40, sovereignty shall be vested by the nation in trust with the King Mohammed Idris el Mahdi el Senussi and after him to his male heirs, the oldest after the oldest, degree after degreeArticle 45 of the 1951 Constitution states:[11] the Throne of the Kingdom is hereditary in accordance with the two Royal Orders promulgated on 22nd of Safar 1374 H., and the 25th of Rabi'e el-Thani 1376 H., respectively.

[12] As a result, King Idris appointed his brother and Mohammed El Senussi's grandfather, Muhammad Rida Al-Mehdi al-Senoussi as Crown Prince.

Section 2 of the Royal Decree states:[13] If the King were to die without a male Heir his wife not being pregnant, or if she were pregnant but the pregnancy was not to result in an Heir to the Throne, then the Crown would be retained by His Royal Highness Prince Al-Hassan Al-Rida who would become the origin of future successions to continue through His line according to the rulings of our Order to reorganise the Royal Household issues on 20 October 1954.On August 4, 1969, King Idris announced his planned abdication in favor of the Crown Prince (to take effect September 2, 1969) writing that "Now I hand it over to the forty-three-year-old Crown Prince el-Sayyid el-Hasan el-Rida el-Mehdi el-Senoussi, who is to be regarded from today as King el-Hasan el-Rida el-Mehdi el-Senoussi.

[8] Senussi sent his condolences "for the heroes who have laid down their lives, killed by the brutal forces of Gaddafi" and called on the international community "to halt all support for the dictator with immediate effect.

On 24 February 2011, Senussi gave an interview to Al Jazeera English in which he called upon the international community to help remove Gaddafi from power and stop the ongoing "massacre".

[34] Support in Libya for the return of the 1951 Constitution and the Senussi monarchy has increased significantly since the start of the Libyan Civil War and is especially prevalent on social media.

Active groups advocating for the reinstatement of the 1951 Constitution and the return of the Senussi monarchy have emerged in Tripoli, Zliten, Jebel Akhdar, and other cities across Libya.

In 2014, former Libyan Minister of Foreign Affairs Mohamed Abdel Aziz called for the return of a constitutional monarchy as a "uniting symbol for the nation."

[43] Despite the growing support for the return of the Constitutional monarchy under his leadership, Prince Mohammed El Senussi has insisted that it is up to the Libyan people to decide the future of their country.

[8] Nearly a thousand Libyan citizens gathered to attend the National Conference for the Activation of the Constitution of Independence, held in October 2017 in the city of Gharyan.

The conference was broadcast live on Libyan television and was the first of similar future events to take place in Tobruk, Beida and Jaghbub as part of the larger Movement for the Return of Constitutional Legitimacy occurring across the country.

[45] Heir to the throne, Prince Mohammed El Senussi, was widely referenced by the conference's attendees as the leader of the Libyan people according to the Constitution of Independence.

[48] On 24 December 2014, Mohammed called on Libyans to unite and lay personal interests aside in favour of national ones, speaking publicly for the first time in over three years in a video recording.