American Gym
- MMA
- Fitness
- Equipment
1 of these gyms is based in Placentia; the others serve Placentia from towns including Orange (6 mi), Irvine (15 mi) and La Habra (6 mi).
21 open weekends · all 24 rated 4.5+
Data verified October 18, 2026
The 24 gyms listed for Placentia, CA teach kickboxing, muay thai or both. What each gym says about timetables, junior classes and sparring comes from its own website, alongside public review scores.

The 24 gyms on this page are rated from 4.5 to 5.0 across 1,497 reviews; 15 have 50 or more reviews. When students and parents rate these gyms on specific qualities, they most often praise professionalism (94%), quality (85%) and communication (67%). The topics that come up most in reviews of the gyms on this page are "confidence", "skills" and "atmosphere". 20 are open on Saturdays and 7 on Sundays. 1 has a BBB rating of A or A+. 19 have ten or more years of experience, the longest 41 years. 10 list coupons or special offers. We have a website on file for all 24 of the gyms on this page; 18 publish a contact page; 18 list a public email and 8 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.
8 of the 24 gyms here take bookings through their own site, which is the simplest way to land in a beginner session rather than the fight class. A gym without online booking works on a phone call or a walk-in, so say on the phone that it is your first time.