English summary: This volume, the result of a joint research project of the Language Laboratory, languages and cultures of Black Africa (UMR 8135, CNRS-INALCO), is a collection of eleven contributions on the properties of the logophoric pronoun and reported speech in several Central African languages. The different sections, illustrated through many examples of spontaneous speech, pay special attention to the discursive dimension of references to 'people' and the types of speech reported. The introduction outlines a typology of the most remarkable traits demonstrated by comparing languages under this regard. French description: Le present volume, fruit d'une operation de recherche collective du laboratoire Langage, langues et cultures d'Afrique noire (UMR 8135, CNRS-INALCO), rassemble onze contributions portant sur les proprietes du pronom logophorique et du discours rapporte dans plusieurs langues d'Afrique centrale. Les differentes sections, illustrees de nombreux exemples de discours spontane, accordent une attention particuliere ... la dimension discursive des references aux 'personnes' et des types de discours rapporte. L'introduction esquisse une typologie des traits les plus remarquables que revele la comparaison des langues sous cet aspect.