Marc Waelkens (born 1948) is a professor of archaeology at the Katholieke Universiteit Leuven in Belgium. He is director of the excavation at the Pisidian city of Sagalassos in Turkey. The research project has become one of the biggest and most interdisciplinary excavations in the Mediterranean, where all aspects of the city and its territory are studied by means of a variety of modern research techniques.
Waelkens has also participated in archaeological studies in Greece, Syria, Italy and Egypt. His doctoral research and early concentration involved Phrygian tombstones and sarcophagi. He identified the workshop at Dokimeion near Afyon, and tried to identify the provenance of the types of stone used and the production patterns.