François Walthéry (born 17 January 1946 in Argenteau near Liège) is a Belgian comics artist, best known for his series featuring an adventurous flight attendant, Natacha. Walthéry began his career in 1962 during studies at the Institut Saint-Luc in Liège, when he collaborated with scenario writer Mittéï to create his first comic, Pipo. The following year, Walthéry started working for Peyo, assisting on The Smurfs, Johan et Pirlouit and Benoît Brisefer. Eventually he assumed creative responsibility of the series Jacky et Célestin, taking over from Will.
He started his best known work series in 1967, working with a script by Gos to create Natacha. Several years in the making, the series did not make its debut until 26 February 1970, in the Franco-Belgian comics magazine Spirou.