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John "Hopper" Hopkins (pronounced /ˈdʒɒn ˈhɒpkɪnz/) (born May 22, 1983) is an American MotoGP racer currently racing for the Rizla Suzuki MotoGP team. He first raced in MotoGP in 2002 for the Red Bull Yamaha WCM team on a two-stroke 500cc bike, and joined the factory Suzuki squad a year later.

He was born in Ramona, California to English parents.

Hopkins's race number is 21.