Experience Empowerment Here

BE FIERCE

About Our Gym

Our Mission

Welcome to Fierce Lioness Fitness, the premier all-female gym in Linden, NJ, dedicated to providing a safe and supportive environment for women's fitness journeys. Our gym offers open access to cutting-edge facilities, semi-personal classes for tailored experiences, and invigorating power circuit training sessions. Join us to transform your fitness goals into reality.

Learn More

CLAUDIA

TERUMI

CLAUDIA

1/11

TRAINERS

Claudia

Massiel

Nicole

Terumi

Classes

Open Gym Access
150 US dollars
More Info
Semi-Personal Classes
45 US dollars
More Info
Fierce Glow Circuit
30 US dollars
More Info

GYM

Photo Jul 04 2025, 6 07 04 AM

Photo Jul 04 2025, 6 02 35 AM

Photo Jul 04 2025, 6 04 49 AM

Photo Jul 04 2025, 6 07 04 AM

1/8

Connect with Us

Fierce Lioness Fitness is ALL we wanna talk about😍⭐️

#njgroupfitness #newjersey #womenwholift #lindennjworkout #workoutgroup

FIERCE where every lift is pushing you to a better you ✨

Join the impact today! DM to book the lifestyle you’ve been waiting for 😉

#njgym #njfitness #nj #workoutclass #newjersey

Real strength is built side by side👑

At Fierce Lioness Fitness, we don’t just work out — we rise, sweat, and glow as one. 💪🔥

Ready to transform with us?
#fiercelionessfitness #Lindennj #njworkout #semipersonaltraining

Beyond The Barbell – Episode 4: Strength Training for Your Body and Mind🧠🧘‍♀️💪

Strength training does more than build muscle—it builds resilience. In this episode, discover with us how lifting weights can reduce stress, sharpen focus, and support both your mental and physical health over time. At Fierce Lioness Fitness, we’re here to educate, empower, and explore new ways to help you stay strong—inside and out.

#gym #unioncountynj #womeninfitness #workoutnj #fiercelionessfitness

You don’t have to start this chapter alone—join our community of strong women today at 2000 Grier Avenue, Linden, NJ🏋️‍♀️✨
#unioncountygym #newjerseyfitness #girlswholift

Your fitness journey can start today!

Email fiercelionessfitness@gmail.com or DM us to get started ✨

Located at 2000 Grier Avenue, Linden NJ

#njgym #njworkout #njgroupfitness #njpersonaltrainer #newjersey

Come work out with Nikki - ASMR edition💪✨

#njgym #unioncountynj #gymhumor #asmr #njfitness

it has it’s perks 👀

#gym #njgym #gymhumor #newjersey #unioncountynj

and lifts heavy 😉

#njgym #gym #fiercelionessfitness #womenwholift #newjersey #unioncountynj #lindennj

come hang with us 🤙

2000 Grier Avenue, Linden NJ
FIERCE LIONESS FITNESS

#gymchallenge #gym #girlswholift #strengthtraining #njgym

JOIN US BEFORE WE LIFT 💪

#gym #fiercelionessfitness #womenwholift #newjersey #njgym #njgyms #njworkoutclass

meet our girls ✨

the moms, teachers, wives, friends, and women who show up for themselves, each other, and us 🤍

we appreciate you, we see you, and we love you ❤️

#gym #njgym #fiercelionessfitness #womenwholift #newjersey

We had the BEST time this morning! Laughs, sweats, booty shakes and even Lani joining in 🥹 Happy Labor Day babes

Take the day off to fill your cup too! Go for a walk, get a workout in or just do something for YOU! Stay Fierce 💖

Who needs the club when you’ve got THIS kind of party? 💃🏽🔥

Last night we had the BEST time at our first twerk class at Fierce! The room was packed with incredible women all coming together to laugh, dance like nobody’s watching and celebrate each other.

This is why Fierce exists: because community, connection, and pure joy will always matter. And the world needs a little more women supporting women ❤️‍🔥

Thank you @iam2short for the most amazing class!!!

MOVE. YOUR. BODY.

We often forget the blessing it is to be able to do so. Complaining about working out, unmotivated, tired between juggling all of our roles as women. Just move your body. We don’t realize how restorative strength training can be. How beneficial beyond just the physical aspects.

Join a community of women that not only train with you inside the gym but out. That uplift you beyond our walls. That show up for you more than clapping after a PR. Fierce is more than a gym. Join us today and see for yourself.

#gym #njgym #newjersey #njsmallbusiness

with your favorite trainers ofc 💁‍♀️

#gymhumour #gymlife #gym #njgym #personaltrainerlife

Struggling with lower back pain? 🥴
Try switching to front squats.
They put less strain on your lower back while boosting:
✅ Ankle mobility
✅ Core & upper back engagement
✅ Overall flexibility & posture
Front squats aren’t just an alternative, they’re a game changer. 💪🔥

the accountability you needed 🫶

#gymmotivation #gym #motivation #motivationalquotesdaily #ﬁtness

come join the impact and be uplifted 💪 ✨

#njgym #gym #fiercelionessfitness #womenwholift #newjersey #strongwomen

Welcome To FIERCE LIONESS FITNESS ✨ the hottest all women’s gym in NJ 💪

Come In ✨

Check Out NJ’s hottest all-women’s gym 💪
Located in Linden NJ 📍

Amenities Beyond Strength Training:
🚿 High End Showers
🔥 Sauna
🏋️‍♀️ Access to Strength Training Program
🫂 Community

DM FOR INQUIRY

#nj #njgym #newjersey #njsmallbusiness #allwomensgym #njworkoutclass

we love them tho 😅

#gym #nj #newjersey #njsmallbusiness #womenwholift

discipline is the key to consistency

#gym #gymmotivation #njgym

Beyond The Barbell: Episode 2 — How Strength Training Fights Cancer …

Strength training is so much more than getting in shape, looking better, or building muscle 💪 Strength training has so many benefits that go beyond the doors of the gym 🏋️‍♀️ As trainers we believe it’s important to be educated and educate on the importance of strength training

#gym #gymeducation #njgym

“Discipline is showing up for yourself, even when motivation doesn’t.”

As we near the end of the year, it’s the perfect time to pause and reflect. Think back to the goals and intentions you set at the start of this year, have you truly done everything in your power to move toward them?

So often, health, fitness, and wellness top our New Year’s resolution lists, and before we know it, the year is almost over and we feel defeated, thinking, “It’s too late.” But I’m here to remind you: it’s not too late.

Fierce Lionness Fitness isn’t just about getting in the gym. It’s about building accountability, developing discipline, and surrounding yourself with a community of strong, beautiful women who lift each other up from the inside out.

If you’re ready to go beyond the surface and step into your power physically, mentally, and emotionally. Join us. You deserve more than just a workout. 💪🔥
#FierceLionnessFitness #FinishStrong #DisciplineOverMotivation

Join Nikki on a leg day following @fierce_lioness_fitness program 💪

#gym #gymroutine #gymreels #njgym

something light 💪

#gymchallenge #gym #nj #njgym

It’s the little things in life ✨

Anyways follow us on all platforms to keep updated & entertained ��😉

#nj #njgym #fierce #fitness #njworkoutclass

Welcome To Our New Series: Beyond The Barbell 💪✨

Today’s episode we share how strength training is the antidepressant that your body naturally produces 🧠 Stay tuned for more content where we explore why strength training is more than muscles and strength 💪

#njgym #gym #fiercelionessfitness #womenwholift #newjersey #fitnessgoals

August 3, 2020.
Five years of Fierce 🦁
Five years of strength, growth, healing… and badass women becoming who they were always meant to be.
Five years of building something so much deeper than just a gym.

This is a love letter to everything Fierce has become and to the incredible women who’ve given it life.

Every woman who has stepped into this space has impacted us. You’ve made us better. You’ve shown us what resilience looks like and what real fierce energy feels like.

We’re celebrating you! The strong, beautiful, phenomenal women we get to love and grow with.

Thank you for letting Fierce hold space for your journey. Here’s to the next 5. And the 5 after that and after that.. 💖

Last day to GLOW for less! ✨
Snag 24 sessions of Fierce Glow Circuit for just $500—that’s over $300 in savings with this one-time offer!
Fierce Glow is our signature strength training circuit designed to help you glow and grow 💪✨

Tap the link in our story to grab your spot before it’s gone!
And hey, send this to that friend you’ve been dying to train with—it’s time to glow together 🔥

#sale #njsale #njgym #newjersey #nj #gym #workoutclass

What does Fierce mean to me?

Five years ago, I was already on a journey to find myself and I still am.
Because truthfully… you never stop. Growth doesn’t have a finish line.

In these five years, so much has happened. Sometimes I sit back and think, how did that all fit into five years?
It feels like a lifetime but in the best way.

Fierce started with a dream in a dusty garage.
A big dream. A scared heart. A whole lot of fight.
And now… it’s this space.
This peaceful, joyful, powerful space filled with women who show up, even when life is heavy.
They show up for themselves and in doing that, they lift each other.

That’s what Fierce is.
It’s the feeling when I walk into the gym and feel pure love.
It’s the community that makes me want to be better as a woman, as a trainer, and now as a mom.

Now that I have Lani, it’s even deeper.
I want her to grow up in a world that feels like this gym feels.
A world where women rise, support one another, push harder, and love louder.

If you ask me what Fierce means… I don’t think I can define it in words.
But I see it. I feel it. And I live it every day.

You want to know the truth?

You’re living the dream you once prayed for.
So while you work for more don’t forget to celebrate this.

Be fierce in everything.
Be fierce in your fight.
Be fierce in your faith.
Be fierce in your love.
Because God is with you.

This place! this movement.. happened because of the power of one dream, one belief, and the support of every single woman who ever walked through our doors.

Thank you for believing in us.
Thank you for building this with us.
Cheers to 5 years… and many, many more.

#BeFierce #FierceLionessFitness #5YearAnniversary

god forbid “you’re a sensitive gangsta” 😭

#gym #nj #newjersey #njgym

Still skipping meals before your workout? 😬 Let’s fix that 💪

Whether you’re lifting heavy or hitting cardio, how you fuel your body matters more than you think. ⛽️

🍌 Before your workout: eat something light but energizing 30–60 mins prior—think banana + PB or a rice cake + turkey

🥤 After your workout: your body needs protein and nutrients to recover—grab a shake and follow it up with a real meal like chicken, rice & veggies

This isn’t about dieting…it’s about fueling smarter. 💪 You’ll feel the difference and see it. 👏

Ready to level up your routine? Save this for your next session

#gym #womenwholift #nutrition #meal #foodinsta #newjersey #personaltrainer

Your health is our priority �— on and off the gym floor.
That’s why our trainers are CPR certified.
Because being fierce also means being prepared. 🖤💪
#FierceLionessFitness #CPRCertified #SafetyFirst #strongaf #WomensFitness

challenge accepted @nickiminaj ✔️

#njgym #gym #challengeaccepted #explorepage

✨ Tap into your power, babe it’s time to get Fierce! 💪🔥 Surround yourself with strong, uplifting women who are ready to hype you up, cheer you on, and push you past your limits.

Join the Fierce Lioness Fitness community where every session is more than a workout, it’s a full-body glow-up. 💋 Semi-personal training starts as early as 5:30 AM (yes girl, we rise ✨early✨) and includes full open gym access.

💖 Tailored training programs
💖 Real results
💖 The community you didn’t know you needed

Ready to sweat, slay, and transform?
Come see us at 2000 Grier Avenue, Linden, NJ # your Fierce era starts now. 🐾

#FierceLionessFitness #TapIntoYourPower #StrongIsSexy #nj #njgym #njworkout #newjersey

On today’s episode of love island 🏝️… we’re hitting PR’s, lifting heavy and pushing through our workouts 💪

On another note who’s signing up @getmasfit for Love Island Season 8 - it’s looking like they’re in need of a fierce babe 👀

#loveisland #amayapapaya #gym #newjersey #funny #womenwholift

A space designed to challenge you, ground you, and strengthen every part of you.

✨ Ready when you are.

#FierceLionessFitness #MyKindOfTherapy #StrengthInStillness #WomensWellness #njgym #njfitness #njtrainer #nj #womensupportingwomen

From garage grind to girl gang goals 💪💕 What started as 1:1s in a tiny space is now a full-blown Fierce Lioness community — still intimate, still strong, just a lot more fierce.

We’re lifting heavier, laughing louder, and growing together. This isn’t just a gym. It’s your place to glow, grow, and get gritty with a crew that gets it. 🩷

Ready to take your spot? Semi-personals are live — and they’re filling fast...

DM FOR INFO

#businessgrowth #nj #newjersey #njgym #gym #girlswholift #personaltrainers

🔥 Locked in and laser focused 🔥
Fresh from our latest shoot and ready to take Fierce Lioness Fitness to the next level. The energy is real, the momentum is here — and so are your goals.

📅 Book your session now. Let’s get to work.
#NextChapter #Fierce #BookNow #BuiltNotBorn #NJGym #GymGirl

Because counting macros shouldn’t be your everything, and a sweet treat never killed anybody. It’s all about balance ✨

#balance #gymmotivation #womenwholift #gymgirl #nj #njgym

Train with @getmasfit 💪

Full upper body day routine curated and created by the Fierce team ✨

Because upper body shouldn’t be an after thought ladies, #getthatworkoutin !
-

#njgym #womenwholift #newjersey #strongwomen #gym #fitnessgoals #gymroutine #workout #workoutroutine #upperbodyworkout

.pro-gallery-wix-wrapper {display: block !important;} .pro-gallery-wix-wrapper .gallery-item-container {opacity: 1 !important; display: block !important;}

Follow us on Instagram

Our Clients Say

Maha Alyas

JOINNN THISSSS GYMMMMM. Fitness has been a struggle for me my whole life and finding the motivation to stay consistent + disciplined has been tough. That all changed when I joined FLF.

Margaret Henr

Fierce Lioness changed my life. I always wanted to love working out but nothing I did would make a difference. I found these ladies and never looked back. Not only do they KNOW THEIR STUFF but they do everything, and I mean everything with love.

Patricia Beltran

6 months ago

The best all women gym. The trainers make you feel very comfortable. They take the time to train you. The atmosphere is amazing, with a very positive vibe. The best choice I have done in my life is to come to Fierce Lioness Fitness, which is worth every penny.

Experience Empowerment Here

BE FIERCE

About Our Gym

TRAINERS

Classes

Open Gym Access

Semi-Personal Classes

Fierce Glow Circuit

GYM

Connect with Us

​

Follow us on Instagram

Our Clients Say

Fierce Lioness Fitness