Gur (or Mabia) languages which are spoken in West Africa have so-called internally-headed relative clauses (IHRCs), but they have not received serious attention in syntactic and typological research on IHRCs. In this article, building on detailed first-hand data, we describe the syntax and semantics of IHRCs in five Gur languages: Buli, Dagaare, Dagbani, Gurene, and Kabiyé. It is demonstrated that their IHRCs refute the syntactic and semantic generalizations proposed in the literature (Gorbet 1976;Cole 1987;Grosu 2002;Watanabe 1991;. We also compare IHRCs in Gur and Japanese and argue that the existing semantic typology of IHRCs must be reconsidered, showing that properties of two types of IHRCs-restrictive and maximalizing IHRCS-do not necessarily show predicated correlations.