Ontario Boxing Club
“Definitely getting your money's worth with the coaching something for all skill levels.”
Best Boxing Classes near Ontario, CA
2 of these gyms are based in Ontario; the others serve Ontario from towns including Rancho Cucamonga (6 mi), Upland (6 mi) and Fontana (9 mi).
1 open 24/7 · 13 open weekends · 13 rated 4.5+
Data verified October 16, 2026
The Ultimate Warriors Boxing Academy
“It's friendly and they focus on your training”
Corona Hills Boxing & Fitness
“Corona Hills Boxing & Fitness and their all girl's boxing classes have been a blessing!”
Warzone Boxing Club
“Warzone Boxing for me has been a breath of fresh air and knowledge!”
UCS
“This gym provides clear and concise coaching with a very authentic communal environment for people of all skill levels.”
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Chozen Martial Arts
“When we went to the ceremony for him getting a stripe on his belt, he showed off his skills and I was impressed!”
The 15 cards on this page are boxing gyms and coaches listed for Ontario, CA. What each gym says about session times, junior classes and whether a ring is on site comes from its own website, with ratings from public reviews.
Area overview: Ontario, CA
The 15 gyms on this page are rated from 4.2 to 5.0 across 817 reviews; 6 have 50 or more reviews and 13 are rated 4.5 or higher. The topics that come up most in reviews of the gyms on this page are "facilities", "knowledge" and "skills". 1 is open around the clock; 13 are open on Saturdays and 5 on Sundays. Domain records put 4 websites of the gyms on this page at ten or more years old; the oldest dates from 2009. 1 is family- or locally-owned and 2 list coupons or special offers. We have a website on file for all 15 of the gyms on this page; 9 publish a contact page; 10 list a public email and 2 take bookings online. We count these figures across the gyms on this page; distances are straight-line, and hours and prices change, so confirm the details with the gym before you enroll.
Do all the boxing gyms on this page sit inside Ontario?
No. 2 gyms out of the 15 here actually train in Ontario. The remainder come from other towns. A gym across a river can look close and still be a long trip, so check the route before you sign up.
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Undefeated Boxing Club
“Great gym, good atmosphere, Coach Daniel and Gabby are great and the others at the gym are helpful as well definitely seen a improvement in my skills health and fitness since I began.”
JV Jiu Jitsu Rancho Cucamonga
“Came here on a Saturday on a whim and was greeted to a small class and accommodating instructor who was kind enough to let me drop in.”
Aguirre's Fighting System
“Jay is the kickboxing coach and his attention to detail and ability to tailor his instruction to each person's needs is second to none”
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Team Elite Athletics Tesa
“My kiddo has made great progress and looks forward to every training.”
All World Boxing Club
“My 8yr old son and 16yr daughter are taking boxing classes here and they really enjoy it.”
Warriors den MMA
“The Teachers spend time with each student so everyone had a chance to proceed and are playful enough that my 4 year old twins run up to give them hugs before and after their sessions.”
The Shop. Strength and Fitness
“I get pushed and coach Eric puts in the time to teach us boxing with conditioning.”
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PFT Boxing Club
“Good place for learning Boxing, highly recommend to my friends.”
Fit Fast Transformation
“Dion has been my personal trainer for several months when I came in I was weak but staying consistent going to my workout 3 times out of the week has made a huge change for me not only in my appearance but giving me more energy as well I felt amazing because not only did I notice a difference my family members did as well.”
Why these companies made our list
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