Jazzercise is a fitness franchise company founded by Judi Sheppard Missett in 1968 and headquartered in Carlsbad, California, United States. The franchise's name is a portmanteau of "jazz" and "exercise".
Jazzercise combines dance workouts, strength and resistance training with popular music for a full-body workout. The company currently has over 8,300 franchisees worldwide in 32 countries.