Ryan Mejiro is a supporting character in the anime series Uma Musume: Pretty Derby. She is a horse girl inspired by the real-life racehorse Mejiro Ryan. Known for her athletic physique and tomboyish personality, Ryan is a dedicated and hardworking member of the Mejiro family, striving to live up to the family's prestigious legacy. She is supportive of her fellow horse girls and often acts as an encouraging older sister figure while aiming to achieve her own racing dreams.