Our mission is to enhance the lives of children and their families by providing fitness and gymnastics classes in a challenging yet non competitive environment.  We are committed to helping children build self-confidence and develop physically, socially, and emotionally, all while being themselves and having fun.  We offer a variety of gymnastics, dance and sport skills classes each specifically designed for your child's age group.

We are located in the heart of Saint Louis County in Creve Coeur MO, just one mile west of Highway 270 and Olive Blvd in the Bellerive Plaza shopping center.  The owners, Kelly and Matt Mertens, were born and raised in St. Louis County where they still live today.  Their daughters Aubrey (5yo) and Stella (2yo) are both regulars at the gym! 

Miss Kelly began taking gymnastics classes at the tender age of 2 and started teaching when she was just 15 years old.  Miss Kelly has now been teaching for over 15 years and continues to love every minute of it!

We are currently enrolling for Spring Classes ages 10 months - 12 years! Please contact us at 314.439.1100 or misskellysgym.com for further info!