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MK Boxing

4.9 ★★★★★ 47 Google reviews · Muay thai gym in North Billerica, Massachusetts

Muay Thai gym Free trial Beginners welcome Kids & teens Private lessons Fitness classes Fight team

Friendly, family-owned and operated fitness center offering boxing and kickboxing classes, plus personal training.

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 levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Kids & youth classes kids and youth muay thai classes — built around discipline, focus, and confidence
  • Private lessons private, one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
  • Fitness & conditioning muay thai fitness and cardio classes — a serious workout you can do without ever having to spar
  • Sparring & clinch sparring and clinch sessions for members ready for controlled contact — always optional and coach-supervised
  • Fight team a competition team for members who want to test themselves as amateur fighters
  • Today see hours ·
  • Website & schedule mkboxing.com — book classes and see the live schedule
  • Phone (781) 376-4269

Hours

Monday 11:30 AM–7:30 PM
Tuesday 11:30 AM–7:30 PM
Wednesday 11:30 AM–7:30 PM
Thursday 11:30 AM–8 PM
Friday 11:30 AM–5 PM
Saturday 10 AM–12:30 PM
Sunday Closed

Hours shift for holidays, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

Muay thai classes on the schedule at MK Boxing, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🌱 Beginner Muay Thai 5 mentions

“If it is your first time, I would suggest trying out Bobby's kickboxing class on Wednesday nights, or Dennis has a beginners boxing class that really focuses on technique.”

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🧒 Kids Muay Thai 4 mentions

“My son who had never boxed before wanted to try it and we went to MK.”

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👤 Private Lessons 2 mentions

“I've taken classes and private lessons and I highly recommend trying it out.”

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🔥 Muay Thai Fitness 7 mentions

“They have different types of classes you can take such as Boxing, Kick Boxing, Muay Thia, MMA, and they also have conditioning classes.”

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🥊 Sparring 4 mentions

“If you don't want to do the classes, there is a small weight area where you can work out, a ring where you can spar others, and heavy bags to practice on.”

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🏆 Fight Team

“Whether you want to compete or just get in shape there are trainers in all Martial Arts forms to help you meet and exceed your goals.”

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📘 Fundamentals 2 mentions

“I would highly recommend MK Boxing to people who want a great workout and who want to learn the proper techniques in boxing.”

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Other martial arts here

Muay thai gyms are usually multi-discipline. Here's what else members mention training under the same roof at MK Boxing — mined from their reviews and the gym's own info.

🦵 Kickboxing 10 mentions

“The classes MK Boxing offers, such as Boxing, Kickboxing, MMA, and Muay Thai provide a new and challenging workout (something you would not find at a regular gym).”

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🥊 Boxing 53 mentions

“I would highly recommend MK Boxing to people who want a great workout and who want to learn the proper techniques in boxing.”

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🏟️ MMA 4 mentions

“The classes MK Boxing offers, such as Boxing, Kickboxing, MMA, and Muay Thai provide a new and challenging workout (something you would not find at a regular gym).”

Other gyms that also teach mma →

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 BJJ, boxing, or MMA alongside muay thai, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 47 Google reviews — in their own words.

🧑‍🏫 expert, authentic coaching 2 mentions

“It's loaded with equipment and Mike, the owner, is a very personable and knowledgeable trainer.”

🌱 welcoming to beginners 7 mentions

“If it is your first time, I would suggest trying out Bobby's kickboxing class on Wednesday nights, or Dennis has a beginners boxing class that really focuses on technique.”

🤝 no-ego, friendly gym 12 mentions

“The people at MK Boxing are always welcoming, no matter what level, whether beginner or advance, you may be.”

📘 real technique & fundamentals 8 mentions

“I tried to go back to some of my former martial art gyms but was told that they only had classes and not having people just come in and workout.”

🔥 killer workout & conditioning 14 mentions

“The classes MK Boxing offers, such as Boxing, Kickboxing, MMA, and Muay Thai provide a new and challenging workout (something you would not find at a regular gym).”

🥊 legit sparring & fight team 7 mentions

“If you don't want to do the classes, there is a small weight area where you can work out, a ring where you can spar others, and heavy bags to practice on.”

From the reviews

Best gym I have ever trained at. As a teenage girl, I have never felt belittled by any of the staff. Michael Knox(the man behind the logo) is one of the best, most honest and helpful coaches I have ever had. He's a mentor, trainer, and most of all a friend.

★★★★★ — Prayaa, Jun 2026

MK Boxing has been a second home to me for almost four years now. I cannot imagine what it would be like without this gym and the people I've met here. This gym is not only a place where you'd want to go to get a fantastic workout, but also a place where you'd want to mingle, meet new people, and have fun.

★★★★★ — Heather, Feb 2013

From the time i walked into MK boxing 6 years ago i knew this was the right place for me. Mike the owner welcomed me and made me feel so comfortable. Having signed up to multiple gyms and never committing to even showing up twice a week, there was never any structure.

★★★★★ — Irene, Nov 2022

MK Boxing is a fantastic place to train. Mike and the staff work so closely and so well with the clientele that it makes the experience that much better. At MK Boxing, you can take classes in boxing, kickboxing, Jui Jitsu and Muy Thai.

★★★★★ — Chris, Sep 2015

Excerpts from public Google reviews. Read all 47 reviews →

New to muay thai? Start at MK Boxing

MK Boxing 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 program is for. A few things worth knowing before your first week. First, you don't need to be fit to start — you get in shape by training, not before it, and coaches scale the conditioning to you. Second, you won't be thrown into sparring — reputable gyms build fundamentals (stance, footwork, and the basic strikes of the "art of eight limbs") for weeks before any contact, and sparring stays optional. Third, all 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.

See their beginner class info

Your first muay thai class at MK Boxing

Nervous about walking into a muay thai 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 on pads and bags — not fighting. Rest whenever you need to; no one will bat an eye. What to wear: shorts or athletic wear and a t-shirt; you'll train barefoot on the mats. What to bring: water and hand wraps if you have them — many gyms lend gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves, wraps, a mouthguard, and shin guards. Sparring is optional and comes later, once your fundamentals 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.

Muay thai is a contact sport. Ease in, 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 MK Boxing

34 Sullivan Rd Ste 13, North Billerica, MA01862

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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.