The Best Martial Arts School in Poughkeepsie.

Mercury Jiu Jitsu guides kids and adults in Poughkeepsie to build discipline, focus, and confidence through fitness and martial arts. Book a free assessment class to get started with the best martial arts school in Poughkeepsie.

Do Any of These Sound Like Your Child or You?

Our goal is to empower you or your child to unleash inner strength, develop discipline, build focus, and to have a positive impact for everyone who lives in Poughkeepsie.

Why Join Kids Martial Art Classes

  • Build Focus & Discipline: If your child is having a hard time focusing, or paying attention, our kid's martial art classes will help them develop focus and discipline skills.
  • Build Self-Confidence: Our kid's martial art classes are designed to help your child to develop self-confidence and decrease anxiety in their day-to-day life.
  • Develop Listening Skills: Is your child not listening or following instructions? Engaging in martial art classes nurtures children's listening skills as they learn to follow instructions and respond to cues from instructors.
  • Learn Self Defense: Dealing with bullies in school or online? Our martial art classes are a great way to teach your child to protect themself against bullies physically and emotionally.

Why Join Adult Martial Art Classes

  • Shed Extra Pounds: It's hard to stay motivated working out alone. Instead with our MMA programs you can have fun and shed weight at the same time. Never feel like you're working out again.
  • Build Strength: Our martial art classes are designed to help you improve strength through diverse workouts, enhancing both muscular fitness and overall physical resilience.
  • Join The Tribe: Become part of a strong tribe and community of people who love MMA. Like-Minded individuals to level up their skills, encourage each other, and win at life.
  • Learn Self Defense:  Nothing makes you feel more confident than knowing that not only can you protect yourself but also your family and the ones you love.

Poughkeepsie's Best Martial Arts. Our Programs

Welcome to our Training Facility! We offer a variety of programs designed to meet the needs of both beginners and advanced students. Whether you're looking to start your martial arts journey, improve your skills, or find a fun and engaging way to stay fit, we have something for you. Check out our current offerings and stay tuned for exciting new classes coming soon!

Adult Classes

Beginner Level:
  • Gi Training: Ideal for those new to martial arts, our beginner Gi classes focus on the fundamentals. You'll learn basic techniques, positions, and movements while getting accustomed to training in a traditional uniform.
  • No-Gi Training: In our beginner No-Gi classes, you'll train without the traditional uniform. These sessions emphasize movement and technique, making them a great introduction to martial arts for those who prefer a more casual attire.
Advanced Level:
  • Gi Training: For experienced practitioners, our advanced Gi classes offer the opportunity to refine techniques, develop complex strategies, and engage in high-level sparring. These sessions are perfect for those looking to compete or take their skills to the next level.
  • No-Gi Training: Advanced No-Gi classes focus on advanced techniques, submission grappling, and dynamic movements. These sessions are intense and fast-paced, catering to students with a solid foundation in martial arts.


We are excited to announce that we will soon be expanding our program offerings to include:

Pre-K Martial Arts (pending)

This martial art class focuses on the fundamentals of exercise, basic martial art techniques, how to handle life issues appropriate for this age group, and, of course, fun!

Kids Martial Arts (pending)

This martial art class focuses on exercises designed to take you to the athlete level, martial art techniques that lead you on the path to black belt, and how to set realistic goals appropriate for your age.

Teen/Adult Martial Arts (pending)

This martial art class focuses on exercises designed to take you to the athlete level, martial art techniques that lead you on the path to black belt, and how to set realistic goals appropriate for your age.

Need a Martial Arts School in Poughkeepsie to Unlock Your Hidden Potential?

Here is how you can get more information about our program, pricing, schedules, and get started.

Book a Free Martial Art Assessment Class

Schedule your free assessment class below. Talk to one of our coaches about your goals, challenges, and what you looking to accomplish for you child or you!


Join us for an assessment class

Come join us for an assessment class. Our instructors will work with you to figure out which program will help you reach your goals.


Sign up for one of our martial arts classes.

If you love what we have to offer and think we can help you or your child achieve and grow, then let us know and we will enroll you into the program that fits you best.


Our School Gallery

Meet Our Coaches

Leonardo Smerdel De Sousa


"Although Brazilian born, I didn’t start training in jiu-jitsu until coming to the US. I’ve been practicing and training for more than 10 years and currently brown belt for over 3 years under Mike Pillardino. During those 10 years, I’ve been a part of a few good schools, learned from my professors, competed across the U.S., and met great people. I decided to open my own academy, to share my greatest passion, through teaching, guiding, and make a difference in people’s life’s.

Jiu-jitsu it’s a great community and I’m proud to be part of it! OSS!"

Lucan Stickle

Coach - Strike program

"Born and raised in Poughkeepsie, NY. I discovered my passion for boxing and Martial Arts at the age of 15. I knew when I laced up my gloves that this is what I wanted to share with the world. I wish to provide sound and proper techniques within the sport and see individuals grow. Throughout my 14 year career with Martial Arts, I have faced many opponents, with New Orleans becoming most successful. I have faced Amateurs and professionals inside of the ring. I have found passion for what I do and I look to offer that to anyone who is interested in learning the sweet science"

What Poughkeepsie Locals Are Saying.

T. Mason recommends Mercury Jiu Jitsu

via Google

Immensely supportive group, classes are at a perfectly reasonable time, intimate class structure. Leonardo breaks down and reviews the nuances of position control as it occurs. Highly recommend anyone who is interested in BJJ to take a look in.

Hunter Gent recommends Mercury Jiu Jitsu

via Google

Awesome bjj school in Poughkeepsie, Very welcoming community. Coach Leo always teaches very useful lessons and gives students great rolls.🤙🏼

Deborah Mason recommends Mercury Jiu Jitsu

via Google

As a beginner of Jiu Jitsu, I really appreciate Leo’s detailed level of instruction. The class was a great over all workout!

Lucan Stickle recommends Mercury Jiu Jitsu

via Google

Leo is phenomenal!
He genuinely makes Mercury Jiu Jitsu feel like your home. His one on one instruction and constant support throughout each session is what makes him standout as a brilliant instructor/mentor.

I highly recommend Leo and Mercury Jiu Jitsu!

Nobu C recommends Mercury Jiu Jitsu

via Google

I dropped into this awesome studio to train with coach Leo. Everyone there were very welcoming, and gave me a lot of pointers on how to practice and learn bjj.

Ample parking spots and close to the station. If you’re in the area and thinking about learning martial arts, I highly recommend Mercury BJJ.

James Petroski recommends Mercury Jiu Jitsu

via Google

A great new space, and coaches Leo and Chris teach legit Jiu-jitsu. Great for all levels.

Got Questions? We Got Answers

My child isn't athletic. Can he/she still participate in martial arts?

Absolutely. Brazilian Jiu Jitsu teaches kids to be coordinated, flexible and strong. Kids who don't naturally have these qualities develop them. Kids who do have these qualities develop them even more.

Are these Brazilian Jiu Jitsu classes fun?

Yes! After all, these are children we're dealing with here. And kids love their fun. We do a variety of games and activities that have kids laughing and smiling. We work hard here - but we play just as hard.

Can Brazilian Jiu Jitsu cause injury?

Because we place such a huge focus on safety and injury prevention, we're proud to say that injuries are very few and far between with our program. In fact, because Brazilian Jiu Jitsu gets you in great shape, and makes you strong and flexible, people often see LESS injuries in their lives.

Do you have to be in good shape to take Brazilian Jiu Jitsu?

Not at all! In fact, many people use martial arts as a way to get in good shape. They come to us out of shape, and quickly become athletic and limber.

Is Brazilian Jiu Jitsu violent?

No! Because self-defense technique is taught in Brazilian Jiu Jitsu, it's often thought of as violent. However, the philosophies behind Brazilian Jiu Jitsu revolve around peace and harmony. The moves are more of a way to become connected with your body. We teach diplomacy and friendship. However, if a violent situation ever arises in your life, you'll have powerful tools to defend yourself and your loved ones.

What's a good age for a child to start Brazilian Jiu Jitsu?

Honestly, practically every age is a good age to start! We have young children, as well as teenagers. We also have specific programs for adults. So no matter what age - we've got you covered.

Where To Find Mercury Jiu Jitsu 

By opting into the web form above you are providing consent for Mercury Jiu Jitsu to send you periodic text messages. Standard rates may apply. You can reply HELP at anytime to learn more. You may opt-out anytime by replying STOP.

Address: 9 Vassar Street, Poughkeepsie, NY, 12601, United States

Phone: (845)444-4560


Ready To Get Started? Book Your First Free Assessment Class Today.

Click the button below to book a free assessment class below and experience our training methods first hand.