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Williams Academy of MMA

5 ★★★★★ 109 Google reviews · Kickboxing gym in Fountain Valley, California

Kickboxing gym Free trial Beginners welcome Kids & teens Cardio kickboxing Women's classes Private lessons

Plan your first class

  • Free trial or intro class most gyms welcome new members with a free trial or intro class — check their site or give them a call to book your first session
  • Beginner-friendly all fitness levels welcome, including total beginners — no experience needed, and you get in shape by training, not before
  • Cardio kickboxing classes high-energy cardio kickboxing on the bags and pads — a fun, sweaty workout built for fitness and weight loss, at your own pace
  • Kids & teen classes kids and teen kickboxing classes — built around confidence, focus, and fun
  • Women's classes dedicated women's kickboxing classes — a welcoming space to start out and train
  • Private lessons one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
  • Sparring sparring and partner work for members who want it — always optional, eased in gradually, with the coach controlling the contact
  • Today see hours ·
  • Website & schedule williamsmma.com — book classes and see the live schedule
  • Phone (714) 866-6926

Hours

Monday 12–9 PM
Tuesday 8 AM–12 PM, 2–9 PM
Wednesday 12–9 PM
Thursday 8 AM–12 PM, 2–9 PM
Friday 2–9 PM
Saturday 8 AM–5 PM
Sunday Closed

Hours shift for holidays and class-schedule changes — worth a quick check before a special trip.

The classes they run

Kickboxing classes on the schedule at Williams Academy of MMA, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids Kickboxing 17 mentions

“My son who is autistic and has ADHD attends group and 1 on 1 sessions and these classes has helped his attention and behavior tremendously.”

All gyms that run kids kickboxing →

🌱 Beginners 3 mentions

“Compared to most martial arts gyms, Williams MMA is very beginner friendly and not intimidating.”

All gyms that run beginners →

🤜 Sparring 2 mentions

“He has sparred with UFC level fighters in the past and the way he teaches makes it easy and effective to learn.”

All gyms that run sparring →

🥊 Boxing

“Went from super scared of boxing to having so much fun and building MMA skills.”

All gyms that run boxing →

👤 Private Lessons

“My son who is autistic and has ADHD attends group and 1 on 1 sessions and these classes has helped his attention and behavior tremendously.”

All gyms that run private lessons →

Other martial arts here

Kickboxing gyms are usually multi-discipline. Here's what else members mention training under the same roof at Williams Academy of MMA — mined from their reviews and the gym's own info.

🥊 Boxing

“Went from super scared of boxing to having so much fun and building MMA skills.”

Other gyms that also teach boxing →

🏟️ MMA 15 mentions

“Williams Academy of MMA in Fountain Valley is an excellent place for kids 5+ to build discipline, respect, and confidence.”

Other gyms that also teach mma →

🛡️ Self-Defense 2 mentions

“Classes are fun and provide a solid foundation for self-defense.”

Other gyms that also teach self-defense →

Disciplines are mined from reviews and the gym's own info — they show what members have trained, not a formal class guarantee. If you specifically want muay thai, boxing, or MMA alongside your kickboxing, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 109 Google reviews — in their own words.

🧑‍🏫 expert, motivating coaching 3 mentions

“This place is awesome, everyone is so welcoming and coach Corey is a great teacher.”

🌱 welcoming to beginners 7 mentions

“I was nervous trying it out at first but found the culture and environment is welcoming and positive for new students!”

🎉 fun, high-energy classes 3 mentions

“Went from super scared of boxing to having so much fun and building MMA skills.”

💦 killer cardio workout 2 mentions
🧒 strong kids program 2 mentions

“My kids love coming here!”

🧠 builds confidence & relieves stress 3 mentions

“Williams Academy of MMA in Fountain Valley is an excellent place for kids 5+ to build discipline, respect, and confidence.”

From the reviews

Compared to most martial arts gyms, Williams MMA is very beginner friendly and not intimidating. No matter the level you’re at, you can’t go wrong here! There are tons of different classes ranging from beginner to advanced with many different styles and focuses.

★★★★★ — Andrea, Mar 2026

Williams Academy of MMA in Fountain Valley is an excellent place for kids 5+ to build discipline, respect, and confidence. Sensei Corey and the coaches run structured classes that emphasize etiquette, listening, and accountability from day one.

★★★★★ — Vince, Apr 2026

My 6 year old son has been attending the mini class for about 9 months. He has grown and learned so much, and this class is doing wonders for his focus in school! Sensei Corey is SO good with kids. He strikes a great balance of being firm and holding high expectations while also being caring and supportive of the kids.

★★★★★ — Joy, Apr 2026

This is my favorite MMA gym. I am taking the striking classes and coach Larry is one of the best! He has sparred with UFC level fighters in the past and the way he teaches makes it easy and effective to learn. One of the best part of this academy is the people. The instructors and students are awesome.

★★★★★ — Mike, Mar 2026

Excerpts from public Google reviews. Read all 109 reviews →

New to kickboxing? Start at Williams Academy of MMA

Williams Academy of MMA comes up as a beginner-friendly gym — noted on their own site. If you've never thrown a punch or a kick, that's exactly who a good beginners class is for. A few things worth knowing before your first week. First, you don't need to be fit or coordinated to start — you get in shape by training, not before it, and coaches scale every drill to you. Second, you won't be thrown into hard sparring — reputable gyms build the basics (stance, footwork, and punches and kicks on pads and bags) first, and any contact eases in gradually under a coach's control. Third, all fitness levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out. Most gyms are happy to let you watch or try a class first, so reach out before you commit.

Check beginner classes on their site

Your first kickboxing class at Williams Academy of MMA

Nervous about walking into a kickboxing gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling the basics — stance, footwork, and punches and kicks on pads or a heavy bag — not hard sparring. Go at your own pace and rest whenever you need to; no one will bat an eye. What to wear: comfortable athletic clothes you can move and sweat in, and supportive trainers. What to bring: water, and hand wraps and gloves if you have them — many gyms lend loaner gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves and wraps (and shin guards once you start sparring). Sparring is optional and eases in gradually, once your basics are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.

Kickboxing is a contact sport. Warm up, pace yourself, listen to your coaches, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find Williams Academy of MMA

8780 Warner Ave #7, Fountain Valley, CA92708

Get directions Facebook

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.