Gyro Zeppeli is a primary ally featured in the seventh part of the JoJo's Bizarre Adventure series, Steel Ball Run.

Gyro is a master of the Spin and an executioner hailing from the Kingdom of Naples. He joins the Steel Ball Run race to win amnesty for a child he is assigned to execute. Gyro's signature weapons are his special Steel Balls that produce and manipulate the Spin - the mastery of which later allows him access to the senescence-inducing Stand Ball Breaker.