Autumn Calabrese
- Born
- 23 September 1980 (45 years)
- Place of birth
- Cleveland, Ohio, USA
- Gender
- Female
Fitness instructor and YouTuber who is known for having invented the 21 Day Fix diet. She is a certified personal trainer, and is a member of the Beachbody community of fitness trainers. She created her eponymous YouTube channel on September 27th, 2013, where she often posts workouts and dieting tips.
