Best Gyms in Ontario, CA

Discover and compare gyms, studios, and fitness centers in Ontario, CA. Browse by category, read real member reviews, and find the gym that fits your goals.

Top Gyms in Ontario

Last updated August 2026

  1. CSUSB Student Recreation and Wellness Center – Olympic Lifting
  2. Arc Martial Arts – Personal Training
  3. Club Pilates – Personal Training
  4. USK Taekwondo Moreno Valley – Personal Training
  5. 24 Hour Fitness – $29/mo
  6. MPower Yoga Claremont – Group Classes
  7. Chino Crossfit – Personal Training
  8. Planet Fitness – $15/mo
  9. Peerless Jiu Jitsu Academy – Group Classes
  10. Chozen Martial Arts Academy – Personal Training

Workout Types in Ontario

Neighborhoods in Ontario

All Gyms in Ontario