The Kalos Gym Leaders are a group of powerful trainers in the Kalos region of the Pokémon universe. Each leader specializes in a specific type of Pokémon and challenges trainers to battles in their respective gyms. Defeating a Gym Leader earns trainers a Gym Badge, which is essential for competing in the Kalos League. There are a total of eight Gym Leaders in Kalos, including Viola, Grant, and Clemont. Each leader has a unique personality and battle strategy, making them memorable characters in the Pokémon X and Y games. Trainers must defeat all eight leaders to become the Champion of Kalos.