Kiara Fontanesi (born 10 March 1994) is an Italian professional motocross racer. She has competed in the Motocross World Championships since 2011. Fontanesi is notable for being six-time FIM women's motocross world champion.
Since 2016 she is an athlete of the Gruppo Sportivo Fiamme Oro (Fiamme Oro Sports Group).
In 2015 she has a relationship with the Spanish MotoGP rider Maverick Vinales, since 2017 she is engaged to the former MotoGP rider Aprilia, the British Scott Redding. Currently she is in a relationship with the boxer Devin Parenti.