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Kims Power Fitness
“Her energy is contagious and you will definitely fall in love with her.”
Best Personal Trainers near Diamond Bar, CA
2 of these trainers are based in Diamond Bar; the others serve Diamond Bar from towns including Orange (13 mi), Placentia (8 mi) and Anaheim (11 mi).
1 open 24/7 · 21 open weekends · 23 rated 4.5+
Data verified October 18, 2026
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Fitness Advantage
“Great team!”
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Mfitness Llc.
- Plan
- Happy
- Motivated
“I joined MFITNESS boot camp, At first I thought I was in over my head but Mike made sure that I was able to complete the workout by modifying some of the exercises for me.”
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Purple Yoga
- Credit Card
- Price
“I'm from out of town and I was looking for a great Studio, I'm so happy that I came across this yoga studios the staff is super friendly and it's so clean and accommodating.”
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Upec Fitness
“Also, they have a large variety of training sessions and equipment for workouts of any kind to help build stamina/flexibility /endurance/strength in any avenue of fitness.”
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Fit Gym
- Equipment
- Health
- Feel
“The staff is friendly and helpful, and there is no pressure to use a personal fitness coach or engage in any of the fitness classes, like Yoga or Country Western dancing.”
This page lists 24 personal trainers and training gyms recorded for Diamond Bar, CA. What each one says about its approach, its hours and its booking comes from its own website; ratings and quotes come from public reviews.
Area overview: Diamond Bar, CA
The 24 trainers on this page are rated from 4.3 to 5.0 across 1,769 reviews; 15 have 50 or more reviews and 23 are rated 4.5 or higher. When students and parents rate these trainers on specific qualities, they most often praise professionalism (90%), quality (83%) and communication (69%). The topics that come up most in reviews of the trainers on this page are "atmosphere", "energy" and "equipment". 1 is open around the clock; 21 are open on Saturdays and 12 on Sundays. Domain records put 12 websites of the trainers on this page at ten or more years old; the oldest dates from 2005. 2 offer a free trial or consultation; 1 is family- or locally-owned and 7 list coupons or special offers. We have a website on file for all 24 of the trainers on this page; 20 publish a contact page; 16 list a public email and 8 take bookings online. We count these figures across the trainers on this page; distances are straight-line, and hours and prices change, so confirm the details with the trainer before you enroll.
Why are some trainers here not in Diamond Bar?
2 of the 24 listings are based in Diamond Bar. The rest come from other towns within 20 mi. Distances are straight-line, and plenty of trainers take clients from further out than their address suggests.
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Axioms Fitness
- Goals
- Feel
- Trainer
“Great gym great owner gyms always clean never gets packed equipment is top notch great private gym there's 24hr gym access the gym never closes definitely love this gym.”
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No Limit Personal Training and Group Fitness Orange County
- Trainers
- Owner
- Goals
“I have been an NLPT member for a little over a year, and I can confidently say joining this gym has been one of the best decisions I have ever made for my physical and mental health.”
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Elite Strength Lab
“Elite Strength Lab offers so much more then personal training, Julian teaches a all women's boxing class on Mondays that is informative, fun and engaging.”
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Z FIT
- Working Out
- Results
- Health
“Gabriel makes the time to get back to me when I have live questions and proactively modified my workouts to be ones that fit my exercise style without my prompting.”
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Core Precision Megaformer Pilates
- Energy
- Addicting
- Fitness
“The atmosphere is encouraging and supportive, the instructors are all great and do varied routines, the music and equipment is top notch and the workout is intense.”
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Rocio Ponce Fitness
- Knows
- Results
- Instructor
“Today, I feel strong, my core supports my spine (so I can continue working pain-free), I feel flexible, I sleep well at night and have lots of energy during the day.”
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Placentia's #1 Fitness Results
- Atmosphere
- Attention
- Cardio
“In addition to different workout pattern, Placentia Fitness also provides guidance in choosing different nutritional patterns in improving overall fitness.”
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Hulk Fit Co.
- Muscle
- Plan
- Strength
“Mike gave me tailored workout programs for when I am at 24 hour fitness after he has shown me proper form and technique , that added knowledge and accountability has helped me elevate my workouts to a whole new level.”
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FIT Brea Gym
“I appreciate that we have the opportunity to challenge ourselves (going heavier, learning new movements, etc ), and practice self-care through mobility class and yoga.”
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Fit Body Boot Camp
- Environment
- 30 Min
- Matter
“I highly recommend East Orange Fit Body Bootcamp to anyone looking to get fit, have fun, and improve their mental and physical health in a safe and supportive environment.”
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The Training Room
“The best place to train and exercise 🤗💖 …”
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Next Level Sports Massage
- Knowledge
- Jiu Jitsu
- Shoulder
“I've worked with various massage therapists in the past, but Marco stood out with his immense amount of knowledge and ability to educate in a way that is super easy to digest.”
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Warzone Boxing Club
“Whether your goal is to compete at the highest levels, learn how to defend yourself, or just get in the best shape of your life Coach Al and the team at Warzone Boxing Club will all help you reach your goals.”
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Crank It Up Fitness: Cycle Row Strength Kickbox
“Great workout studio; High Intense Training & awesome instructors.”
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Fit Defined Personal Training
- Schedule
- Confidence
- Health
“The training gym taught me excellent form, posture, and always instructs in a manner that helps best develop your muscle groups and give you phenomenal progress.”
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Punch It Up Fitness
- Price
- Cardio
- Equipment
“Saw good reviews so decided to check it out for myself with a one day pass, was punching the bag and trainer Benny approached me offering a free 30 min session.”
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Train With Dave
“His training approach is thoughtful, patient, and realistic and it has really helped me implement small but effect changes on gaining traction with my goals.”
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The Pilates Circle
- Core Strength
- Teaching
- Flexibility
“I had tried another Pilates studio in town but was really frustrated and turned away by the constant annoyance EVERYDAY of calls and text about signing up.”
Why these companies made our list
What students and parents say about trainers near Diamond Bar
- “Gabriel is an amazing trainer. His knowledge of strength training and nutrition go hand in hand to helping me reach my goal.” — from a review of Z FIT
- “They are on time, have your workout plan ready to go and make your session feel like you've received the most out of it.” — from a review of Fit Defined Personal Training
- “I have a personal trainer here who works with my needs and is flexible, but motivates me to my best potential and I already feel great after just a week.” — from a review of Punch It Up Fitness
- “I've learned so much about strength training and Jordan's training style is full of knowledge.” — from a review of Elite Strength Lab
Excerpts from public reviews of the trainers listed on this page.
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