Welcome To
Key Martial Arts
Discover Strength, Discipline, and Confidence at Key Martial Arts
Founded by former Marine Matt Polack, Key Martial Arts in Oceanside, CA, is more than just a dojo—it’s a training ground for personal transformation. With a deep-rooted passion for discipline, self-defense, and community, Matt brings the precision and intensity of his military background into every class. Whether you’re a beginner looking to build confidence, an experienced martial artist sharpening your skills, or a parent seeking a positive outlet for your child, Key Martial Arts offers expert instruction in a supportive, high-energy environment.
Train like a warrior. Live with purpose. Join Key Martial Arts today.
Who is Key Martial Arts?
Chief Instructor Master Matt Polack
Key Martial Arts
Mighty Ninjas
In the Mighty Ninja program, our focus is more than just punching and kicking. Our main goal is to train our students in focus, control, discipline, and many other life skills. These classes are packed with positive messages and activities that are certain to help your littlest one learn.
Key Martial Arts
Youth Jiu Jitsu
Youth Jiu Jitsu encourages friendship and teamwork among children, as they often train and spar with partners. It fosters a supportive and inclusive community that can help kids develop strong relationships and a sense of belonging.
Key Martial Arts
Youth Program
As your child gets older, a more intense level of training will be introduced, but don’t worry! Our key philosophies are always in place at Key Martial Arts. We understand that classes have to be as fun and positive as they are challenging.
Key Martial Arts
Teen Program
Between social media, peer pressure, and the demands of school, kids today have a lot of distractions. Taekwondo is the perfect activity for your student, providing benefits that go far beyond the dojo.
Key Martial Arts
Adult Program
What was your last resolution? If you’re like many people, at the start of every year, month, week, or even day, you probably set some kind of resolution for yourself. Want to learn a quick secret? Martial arts training can actually help you achieve some of those resolutions.
What Our Students Are Saying
-
Key Martial Arts offers a unique and exciting approach to martial arts. Their program is designed to encourage children to learn martial arts skills in a positive atmosphere.
-
My grandchild attends Key Martial Arts and loves it! Both Sensei and Mrs. Sensei are great role models for young children. The Sensei is always firm yet fair with the children.
-
However, both of the kids LOVE their dojo family so much that we make the drive twice a week. The love, lessons, and laughing are well worth it!
-
Our child has become stronger and more confident. Mr. and Mrs. Sensei are very professional and work really well with children. Our child loves going there.
-
I cant say enough about this Dojo!! While it started out just for my middle son, all 3 of my children now do Karate! Mr. And Mrs. Sensei are both wonderful!
-
The senseis were the best! Very motivational and really helped transform our son from being a little shy and scared to completely outgoing and not afraid of anything.
-
The instructors here are encouraging, compassionate and fair. Great customer service, fair prices, great environment, and welcoming. My daughter loves it here.

Current Class
Schedule

Current
Offers
