Brazilian Jiu-Jitsu is often called “the gentle art,” and once you step on the mats, you’ll understand why. It’s built on leverage, timing, and technique rather than brute strength, which means people of any age, size, or fitness level can learn, grow, and thrive.
Physically, BJJ builds full body strength, flexibility, and cardiovascular fitness in a way that feels engaging rather than repetitive. Every class is a little different, and your body adapts in ways that carry into everyday life, better balance, better posture, more energy.
Mentally, it’s often described as physical chess. You’re constantly problem solving, reading your partner, and adjusting your approach in real time, building focus, patience, and confidence that extends well beyond the mats.
There’s also the community. Training BJJ means training alongside people who show up for each other, celebrate progress, and push one another to grow.
Whether your goal is fitness, self defense, stress relief, or simply trying something new, BJJ offers a path that grows with you. Every belt, every stripe, is proof of consistent effort paying off.
Ready to see what it’s all about? Come roll with us.
ONYX Brazilian Jiu Jitsu
Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from ONYX Brazilian Jiu Jitsu, Martial Arts School, 2/42-44 Queen Street Campbelltown, Sydney.
15/08/2026
Hey ONYX team! 🥋
Big schedule changes are on the way and we wanted to let you know ASAP!
✨ NEW ON THE MATS
🌅 6am ALL LEVELS classes are landing on Tuesdays AND Wednesdays! Rise and grind, early birds.
👋 SAYING GOODBYE TO
❌ Tuesday 11am Fundamentals
❌ Tuesday 7:15pm Advanced Gi
❌ Tuesday 7:15pm All Levels
⏰ GETTING MORE MAT TIME
Tuesday Fundamentals (6:15pm) now runs until 7:45pm, giving you an extra 30 mins to drill it in!
Wednesday All Levels (6:15pm) now runs until 7:45pm too!
These changes weren’t easy to land on. You’ve been asking for more morning classes, and we love that energy, so we wanted to make it happen. It also gives Prof Ian a little breathing room in his week, which we’re all for.
We really appreciate you rolling with us through this (pun very much intended). Got questions or want to chat about your membership? Tilly’s your go to, just reach out!
Thanks for being part of the ONYX family. See you on the mats! 🥋✨
11/08/2026
Every roll is basically a live puzzle. Your training partner is bigger, or faster, or has a longer reach - now what? Kids have to stay calm, read the situation, and adjust their plan in real time, all while their heart rate is climbing. That’s not just BJJ, that’s a skill set for tests, tryouts, and tough days years from now. 🧠
06/08/2026
Let’s bust some common BJJ myths. If any of these have been holding you back from starting, this one’s for you. Drop a comment if you’ve heard any of these before!
05/08/2026
Have you met Pearl? 👋
Some of you may have already spoken to Pearl on the phone and wondered who the friendly voice was. Well, wonder no more! Pearl is our new admin assistant here at ONYX BJJ.
Pearl is available during the day to help answer any questions you have, whether it’s about classes, membership, or anything else. Tilly and Ian will still be around in the evenings when the academy is open for training.
Welcome to the team, Pearl. Glad to have you on board!
04/08/2026
Huge congratulations to Josh on an incredible performance this Sunday, taking out GOLD in the Gi 93kg> division AND GOLD in the No-Gi Absolute!
From blue belt to double gold medallist, Josh continues to show what hard work and dedication on the mats can do. So proud of you, champ, this is just the beginning.
Come down and train with the crew that’s putting in the work. 👊
Over a year ago, Josh walked through our doors - and he hasn’t looked back since. A couple of months ago, he strapped on his blue belt, and watching his journey has been inspiring. 🔵
From NRL star to BJJ enthusiast, Josh has thrown himself into this sport with the same heart he brought to the footy field. But what really stands out isn’t just his progress on the mats - it’s the way he welcomes every new member with a smile and makes them feel right at home.
We’re proud to have him as part of the ONYX family. Here’s to many more stripes, rolls, and good vibes ahead 👊
NRLtoBJJ BrazilianJiuJitsu
Looking for an activity that gives your child more than just exercise?
At ONYX, our Kids Brazilian Jiu-Jitsu program helps children develop confidence, resilience, discipline, respect, and practical self-defence skills in a fun, supportive environment.
Whether they’re shy, energetic, or somewhere in between, every child is encouraged to learn, grow, and become the best version of themselves.
🥋 ONYX Kids (4–7 years)
🥋 ONYX Juniors (8–13 years)
Why train with ONYX?
• No registration fees
• No cancellation fees
• FREE ONYX T-shirt on sign up
• FREE ONYX rash guard on sign up
Come and discover why so many families choose ONYX. We can’t wait to welcome you to the team. ⭕️❌
28/07/2026
One of the first lessons every BJJ student learns is how to tap.
Tapping isn’t a sign of failure. It’s a sign that you’re training intelligently.
Every tap is an opportunity to learn what worked, what didn’t, and how you can improve next time. The goal isn’t to “win” every round. The goal is to leave every session healthy enough to train again tomorrow.
At ONYX, we encourage our students to tap early, tap often, and always look after their training partners. Respect and safety will always come before ego. 🥋
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Contact the school
Website
Address
2/42-44 Queen Street Campbelltown
Sydney, NSW
2560
Opening Hours
| Monday | 4:30pm - 8:30pm |
| Tuesday | 4:30pm - 8:30pm |
| Wednesday | 4:30pm - 8:30pm |
| Thursday | 4:30pm - 8:30pm |
| Friday | 6pm - 8pm |
| Saturday | 9am - 12:30pm |