Killian Wiard Tillie (born 5 March 1998) is a French professional basketball player who is currently a free agent. He played college basketball for the Gonzaga Bulldogs. Listed at 6 feet 10 inches (2.08 m) and 220 pounds (100 kg), he plays the power forward and center positions. Tillie joined Gonzaga University beginning in the 2016–17 season.