My goal with this thesis to present and compare the trajectories and thoughts of Angela Yvonne Davis (Alabama/USA, 1944) and Lélia Almeida Gonzalez (Minas Gerais/Brasil, 1935 - Rio de Janeiro/Brasil, 1994) - both women intellectuals and activists of the Black movements in the US and Brazil. Angela became internationally known in the 1960s as a Black struggle symbol in the US. The impact of her figure still lingers on in the memory of those who lived in those years. Lélia was an important activist in the Brazilian Black movement of the late 1970s, when she intensively took part in the political struggle for the return of democracy in Brazil. My discussion of the authors´ main works emphasizes the theoretical essays they developed on the social insertion of black women in their countries. It specially highlights the debate forwarded on black women experiences under slavery. Throughout the thesis I call attention for the contribution of their conceptual legacy for contemporary studies on racial relations.