ONYX Gym is one of Sydney's top-rated, award winning gyms. Book A Tour Now 👇
As the largest 24/7 gym in Alexandria, we offer premium equipment, RECOVER by ONYX ice baths & infrared saunas, group classes, expert PTs in a motivating, supportive community.
PT vs Membership Consultant! 5 epic rounds, who do you think will win, MC Jordan or Coach Joseph? Watch and see. 👀💪
02/08/2026
ONYX Members Spotlight ✨ Just a few of the faces that make the ONYX community what it is. 💚
Don’t forget to grab a complimentary Nature Valley bar from reception for a pre-workout boost or post-workout refuel this week!
ONYX EQUIPMENT SET-UP SERIES | How to use and set up the Watson Hack Squat for safe, stable and effective lower body training. Learn the correct adjustments and technique to get the most out of every rep while maximising quad engagement and movement efficiency.
Save this for later and experience it at ONYX Gym Alexandria Sydney!
We honestly can’t believe how many of you guessed it right, your detective skills are seriously impressive!
After weeks of clues, guesses and detective work... you got us 🕵️💚
Watch this video to find out where ONYX Gym #2 will be!
From Founding Memberships and construction updates to our insane equipment lineup (with some pieces you’ll be the first to see in Australia 👀), we’ve got so much to share.
Head over and follow our new page to join us from day one!