Kelly Diller
Kelly Diller


ISSA Certified Personal Trainer

ISSA Certified Strength and Conditioning Coach

ISSA Certified Glute Specialist

ISSA Certified Nutritionist

DEKA Certified Coach

ISSA Elite Trainer

2019-2023 Spartan SGX Coach

Owner/Elite Trainer

Kelly Diller

I'm Kelly Diller, Owner and Certified Trainer of PowHERhouse Fitness, a small women's only boutique gym in Catalina, AZ. This gym opened its doors at the end of 2020 in Montgomery, Texas. However, life got in the way and my family moved to Arizona at the end of 2022. In April of 2023, I opened PowHERhouse Fitness back up in Tucson, AZ.

I created PowHERhouse Fitness because most big box gyms don't have readily available help on the floor and a lot of other franchises focus on high intensity training or CrossFit. PowHERhouse Fitness was created to focus on strength training that will help you build muscle, burn fat and regain your confidence no matter your age. I have trained ladies from 15 to 78 years old. Age is just a number!

Why did I start this journey? Well, because at the age of 26, I suffered a major slip & fall injury that put me in a wheelchair. I was overweight and unhealthy at the time. That was my wake up call that it was time to lose weight, eat healthy and build strength. Since 2010, fitness has been a part of my daily life. I now strive to make fitness fun and not intimidating for all women.

PowHERhouse Fitness was built to be a welcoming & positive atmosphere as well as a safe space for women to workout. You will be shown proper form, but you also must accept the challenge to get out of your comfort zone to reap the benefits of strength training.

I've been training women since 2019 and I'm ready to help you reach your fitness goals. Let's start crushing your goals. Book your 15 minute Discovery call today!