Popular Cities
2 of these gyms are based in Ontario; the others serve Ontario from towns including Corona (13 mi), Chino (5 mi) and Rancho Cucamonga (6 mi).
1 open 24/7 · 16 open weekends · all 24 rated 4.5+
Data verified October 17, 2026
The 24 gyms listed for Ontario, CA teach martial arts and combat sports. Styles taught, kids' programs and class times come from each gym's own pages, with star ratings from public reviews.
The 24 gyms on this page are rated from 4.5 to 5.0 across 1,828 reviews; 16 have 50 or more reviews. When students and parents rate these gyms on specific qualities, they most often praise professionalism (94%), quality (89%) and communication (77%). The topics that come up most in reviews of the gyms on this page are "skills", "atmosphere" and "knowledge". 1 is open around the clock; 16 are open on Saturdays and 4 on Sundays. 2 have a BBB rating of A or A+. 17 have ten or more years of experience, the longest 51 years. 11 list coupons or special offers. We have a website on file for all 24 of the gyms on this page; 17 publish a contact page; 21 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.
2 of the 24 gyms sit inside Ontario. The rest come from other towns inside 20 mi, each shown under the city it belongs to. Distance is measured straight-line, so check the route before you plan a class you would drive to twice a week.
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