William Bonnet (born 25 June 1982) is a French former professional road bicycle racer, who last rode for UCI WorldTeam Groupama–FDJ. In the 2015 Tour de France, Bonnet crashed at full speed on stage 3 near Huy in Belgium after clipping wheels of a rider in front. He has suffered a multiple fracture of the second cervical vertebrae and was rushed to Paris for surgery and placed in an induced coma before any neurological damage was done. Bonnet retired from competition at the end of the 2021 season.