Marie-Joseph Leko was a politician from Congo-Brazzaville.

He was born in Renéville on July 14, 1925.Wagret, Jean-Michel. Histoire et sociologie politique de la République du Congo (Brazzaville). N.p., FeniXX réédition numérique, 1963. pp. 239-240 He worked as an education supervisor in . Leko was elected to the Legislative Assembly (which later became the National Assembly of the Republic of the Congo) in the 1959 election, standing as a candidate of the Democratic Union for the Defense of African Interests (UDDIA) in the Fourth Constituency (Brazzaville).Députés et conseillers économiques des républiques d'expression française, 1962. Annuaire Afrique, 1962. p. 148

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