المختار ولد داداه
Ahmed Ould Daddah (, born 7 August 1942) is a Mauritanian economist, politician and civil servant. He is a half-brother of Moktar Ould Daddah, the first President of Mauritania, and belongs to the Marabout Ouled Birri tribe. He is currently the President of the Rally of Democratic Forces (RFD) and was designated as the official leader of the opposition following the 2007 presidential election, in which he placed second.