Paulus Pierre Joseph Gerdes (November 11, 1952 – November 10, 2014) was a Dutch mathematician and university professor, who was one of the pioneers in the field of ethnomathematics research, particularly in Africa.
His books include:
- L'ethnomathématique comme nouveau domaine de recherche en Afrique (1993)
- Sipatsi (with Gildo Bufalo, 1994)
- African Pythagoras (1994)
- Sona Geometry (1994)
- Ethnomathematics and Education in Africa (1995)
- Women and Geometry in Southern Africa (1995); translated as Femmes et géométrie en Afrique Australe (1996)
- Une tradition géométrique en Afrique—les dessins sur le sable [A geometric tradition in Africa—sand drawings], Vols. I–III (1995)
- Ethnomathematik (1997)
- Lusona: récréations géométriques d'Afrique [Lusona: geometrical recreations of Africa] (1997)
- Geometry from Africa: Mathematical and Educational Explorations (1999)
- Awakening of Geometrical Thought in Early Culture (2003)