Joanna Castro Fitness

You have to take care of yourself first, in order to be the best person you can be for others.

Hello, I’m Joanna Castro. And I’m so happy you’re here!

I believe the key to a successful life is self-love and self-confidence, and my path to building both is fitness and wellness.

I am a certified personal trainer, kettlebell expert and wellness coach dedicated to helping motivated individuals live happy and healthy lives. I’ve got the certifications and experience to guide your fitness journey, but it’s my relentless encouragement and contagious laugh that will make your time with me the highlight of your week!

Train with Me

I make strength training approachable, and I train for life and longevity - every client gets a uniquely personalized approach that meets them where they are, and builds to reach their goals.

Small Group Training
Customized training plan, training alongside 1-2 other clients. Best for those who enjoy camaraderie and a lower per session price.

60-minute session
In person or virtual

Private Training
Customized plan, training solo with Jo. Best for those who want individual attention.

60-minute session
In person or virtual

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Kettlebells with Jo

Some call me kettlebell obsessed - I say it’s one of the most effective full body workouts. Whether you’re an expert or just starting, come join my weekly kettlebell conditioning class to see what all the fuss is about.

75 minutes
Full body workout
Fun kettlebell complexes
Warm up + cool down

Hear what clients are achieving

“Joanna is passionate about helping people achieve their goals. You feel seen, heard, supported & cared for.”

Amy P.
"Joanna knows how to make the best workout for ME! She makes it a priority to individualize. Also I have so much fun - it doesn’t feel like treacherous work."

Lauren K.
"Joanna is one of the most exceptional trainers I've ever worked with. She has a wonderful blend of deep expertise (from being able to target very specific fitness goals to working around injuries) and joie de vivre that makes you excited for the next workout. Joanna makes the gym feel like home."

Alexandra W.
"Joanna has the unique ability to push people without making it about ego, meaning we can do more that we thought, safely. She meets people where they are with warmth and grace."

Liz N.
"It doesn't feel like a chore, it doesn't feel like work, it feels like life. Joanna makes fitness, exercise and wellness something that is not intimidating. She helps people realize it is all part of the bigger picture of their lives."

Sally A.
"I always leave a session feeling good, even when Jo pushes me to do things that are challenging!"

Laura H.
"Joanna is a trainer who works to understand my body. I can trust her to always act in my best interests, and I know she has both my mental and physical health in mind."

Juliette D.
"I've been working out with Joanna for over 8 years. She is a true professional in her field and always makes sure that her sessions are fun, upbeat, and a great well-rounded workout. I always look forward to her Kettlebells with Jo class and will continue to workout with her for years to come. Nothing beats the feeling you get after taking one her classes!"

Marquita P.

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You have to take care of yourself first, in order to be the best person you can be for others.

Hello, I’m Joanna Castro. And I’m so happy you’re here!

Train with Me

Small Group TrainingCustomized training plan, training alongside 1-2 other clients. Best for those who enjoy camaraderie and a lower per session price.

Private TrainingCustomized plan, training solo with Jo. Best for those who want individual attention.

Featured in

Kettlebells with Jo

“Joanna is passionate about helping people achieve their goals. You feel seen, heard, supported & cared for.”

"Joanna knows how to make the best workout for ME! She makes it a priority to individualize. Also I have so much fun - it doesn’t feel like treacherous work."

"Joanna is one of the most exceptional trainers I've ever worked with. She has a wonderful blend of deep expertise (from being able to target very specific fitness goals to working around injuries) and joie de vivre that makes you excited for the next workout. Joanna makes the gym feel like home."

"Joanna has the unique ability to push people without making it about ego, meaning we can do more that we thought, safely. She meets people where they are with warmth and grace."

"It doesn't feel like a chore, it doesn't feel like work, it feels like life. Joanna makes fitness, exercise and wellness something that is not intimidating. She helps people realize it is all part of the bigger picture of their lives."

"I always leave a session feeling good, even when Jo pushes me to do things that are challenging!"

"Joanna is a trainer who works to understand my body. I can trust her to always act in my best interests, and I know she has both my mental and physical health in mind."

Let’s get started!

Small Group Training
Customized training plan, training alongside 1-2 other clients. Best for those who enjoy camaraderie and a lower per session price.

Private Training
Customized plan, training solo with Jo. Best for those who want individual attention.