Yahya Ould Ahmed El Waghef

Dozens of protesters called for Waghef's release in a demonstration near the Supreme Court on 29 April 2009. The police broke up the protest. Subsequently, in negotiations between the junta and the opposition, the opposition demanded Waghef's release as a condition for an agreement. After a deal was reached, the junta released Waghef on 4 June 2009. He was greeted by a crowd as he emerged from the Dar Naim prison in Nouakchott.

Yahya Ould Ahmed El Waghef (Arabic: يحيى ولد أحمد الواقف ‎; born 1960) is a Mauritanian politician. He was appointed as Prime Minister of Mauritania on 6 May 2008, serving until the August 2008 coup d'état. Waghef is also President of the National Pact for Democracy and Development (ADIL), and he was Secretary-General of the Presidency from 2007 to 2008.

Prime Minister Zeine Ould Zeidane resigned on 6 May 2008, and Abdallahi appointed Waghef to succeed him on the same day. Following consultations with majority and opposition parties regarding the formation of the new government, the opposition Union of the Forces of Progress (UFP) announced on 9 May that it intended to participate in Waghef's government; the opposition National Coalition for Reform and Development (Tewassoul) also announced that it had decided to participate in the government on 10 May. However, the President of the Rally of Democratic Forces (RFD), Ahmed Ould Daddah, said on 7 May that the RFD—the main opposition party—would not participate; the President of the Alliance for Justice and Democracy/Movement for Renewal, Ibrahima Moctar Sarr, also said on 10 May that his party would not participate due to policy differences. On 11 May, Waghef's government was named; it had 30 members, including 24 ministers, and 12 of its members had previously served under Zeidane. Members of ADIL accounted for almost two-thirds of Waghef's government and held most of the key ministries. Four members of the government were from the two opposition parties which decided to participate.

On 30 June 2008, 39 deputies in the National Assembly (out of a total of 95) filed a motion of censure against Waghef's government. Most of these deputies were from ADIL, although the RFD (the main opposition party) also declared its support for the censure motion. The deputies complained that Waghef's government had not presented a program and that too many positions in the government had been given to opposition parties and to figures who had served under President Maaouya Ould Sid'Ahmed Taya. 24 senators declared that they were in "unconditional solidarity" with the deputies who filed the censure motion.

On 4 August 2008, 25 of ADIL's 49 deputies in the National Assembly, along with 24 of its 45 senators, announced that they were leaving the party, thereby depriving it of its parliamentary majority.

On 6 August 2008, Waghef was arrested in a military coup d'état along with Abdallahi and the interior minister. The coup plotters were top security forces who had been fired by Abdallahi earlier in the day; these included General Mohamed Ould Abdel Aziz, General Muhammad Ould Al-Ghazwani, General Philippe Swikri, and Brigadier General (Aqid) Ahmad Ould Bakri. Member of parliament Mohammed Al Mukhtar claimed popular support for the coup, saying that Abdallahi behaved in an "authoritarian" manner and "marginalized the majority in parliament." Waghef was reportedly held at an army barracks immediately after the coup.

Waghef said in an interview with Abu Dhabi TV on 20 August that President Abdallahi had dismissed the senior officers because they had already been planning to seize power on 9 August. He subsequently travelled to Nouadhibou in northern Mauritania in order to participate in an anti-coup protest there, but was arrested upon arrival on 21 August 2008. He was reportedly arrested because he left Nouakchott without the junta's permission. On 22 August, it was announced that he was being taken to his home village of Achram, where he would be kept under house arrest. According to Minister of Decentralization Yahya Ould Kebd, the junta sought to "rein in his activism", saying that "his contact with the outside will probably be limited but not banned".

In November 2008, Waghef and four others were charged with intentionally bankrupting Air Mauritanie while Waghef was its Director-General. In early December, bail for Waghef and his co-defendants was set at 100 million ouguiyas; this was reportedly the highest level of bail ever set by a court in Mauritania. Waghef was also charged with corruption in a case involving spoiled food; the bail set in that case was five million ouguiyas.

After President Sidi Mohamed Ould Cheikh Abdallahi took office in April 2007, he appointed Waghef as Secretary-General of the Presidency, with the rank of minister, on 28 April 2007. On 5 January 2008, Waghef was elected as President of ADIL, a party that was formed to support Abdallahi, at the end of the party's constitutive congress.

Waghef was born in Moudjéria, Mauritania. He was Director-General of the Mauritanian Gas Company (Societé Mauritanienne de Gaz, SOMAGAZ) from January 2003 to August 2003 and then Director of the Banc d'Arguin National Park from September 2003 until he was appointed as Secretary-General of the Ministry of Hydraulics and Energy on 27 October 2004. He served in that capacity until April 2005, at which point he became Director-General of Air Mauritanie, remaining in that post until December 2006. In February 2007, he became Advisor to the Minister of Finance.