Moktar Ould Daddah (born December 25, 1924, Boutilimit, Mauritania, French West Africa—died October 14, 2003, Paris, France) was a statesman who was the first president of independent Mauritania (1961–78). He was noted for his progress in unifying his ethnically mixed, dispersed, and partly nomadic people under his authoritarian but enlightened rule.
Of aristocratic background, Moktar Ould Daddah was the first Mauritanian to graduate from a university and to become a lawyer. When he returned from Paris in the mid-1950s, he joined the more moderate of two rival parties, the Progressive Mauritanian Union, and in 1957 was elected to the territorial assembly. By 1958 he was president of the Executive Council and the natural choice for prime minister in 1959 and president in 1961 after Mauritania attained independence. Meanwhile, in 1958 he had established a new unity party, the Mauritanian Regrouping Party, which in 1960 incorporated the chief remaining opposition party.
Moktar Ould Daddah’s first aim was national unity, a delicate problem in a country divided between a minority agricultural south and a largely nomadic Moorish centre and north. At first he tried to balance regional notables and impatient young modernizers in a basically parliamentary regime, but in 1964 he shifted to an authoritarian one-party system (Mauritanian People’s Party, of which he was secretary-general). In July 1978 dissatisfaction with the costly attempt by Mauritania to annex part of former Spanish Sahara resulted in his ouster by a military coup d’état led by Lieutenant Colonel Mustafa Ould Salek.