List of Famous people born in Wallonia, Belgium

Pol F. Swings was a Belgian astrophysicist who was known for his studies of the composition and structure of stars and comets. He used spectroscopy to identify the elements in astronomical bodies, and, in particular, comets. Swings studied at the University of Liège, where he was professor of spectroscopy and astrophysics from 1932 to 1975. He was also a visiting professor at the University of Chicago in the United States.

Pierre Wolper is a Belgian computer scientist at the University of Liège. His research interests include verification methods for reactive and concurrent programs, as well as temporal databases. He is the co-recipient of the 2000 Gödel Prize, along with Moshe Y. Vardi, for his work on temporal logic with finite automata. He also received the 2005 Paris Kanellakis Award for this work.

Roger Leloup is a Belgian comic strip artist, novelist, and a former collaborator of Hergé, who would rely upon him to create detailed, realistic drawings and elaborate decoration for The Adventures of Tintin. He is most famous for the Yoko Tsuno comic series.

Désiré-Félicien-François-Joseph Mercier was a Belgian cardinal of the Roman Catholic Church and a noted scholar. A Thomist scholar, he had several of his works translated into other European languages. He was known for his book, Les origines de la psychologie contemporaine (1897). His scholarship gained him recognition from the Pope and he was appointed as Archbishop of Mechelen, serving from 1906 until his death, and was elevated to the cardinalate in 1907.

Mathieu Criquielion is a Belgian former cyclist. His father Claude was also a professional cyclist.

Vincent Patar is a Belgian film director and screenwriter. In 2009 he wrote and directed the animated film A Town Called Panic along with Stéphane Aubier. It premiered at the 2009 Cannes Film Festival and was the first stop-motion film to be screened at the festival. In 2013 he co-directed with Aubier and Benjamin Renner the film Ernest & Celestine, which received widespread critical acclaim. The film received three Magritte Awards, including Best Film and Best Director for Patar and Aubier. It also received a nomination at the 86th Academy Awards, in the category of Best Animated Feature.