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.