Sports & Fitness
Henry's Gymnasium
Transform Your Body

Push Your Limits

About Henry's Gymnasium

Welcome to Henry's Gymnasium, a trusted Sports & Fitness in Seattle, WA, where quality and community come together. With a 4.70-star rating from 555 reviews, we’re known for great service and quality and a welcoming experience for every visitor.

4.70
Rating
555+
Reviews
24/7
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Independent Reviews

Train Like A Champion

Strength Training

Build muscle and increase your strength with our comprehensive weight training programs and expert guidance.

HIIT Classes

High-intensity interval training to maximize calorie burn, boost metabolism, and improve cardiovascular health.

Personal Training

One-on-one coaching tailored to your specific goals, fitness level, and schedule for maximum results.

Henry's Gymnasium facility

Your Goals. Our Mission.

We're not just a gym - we're a community dedicated to helping you become the best version of yourself. Our state-of-the-art facility and expert team are here to support you every step of the way.

Whether you're just starting out or training for competition, we have the equipment, expertise, and environment you need to succeed.

  • Modern Equipment
  • Certified Trainers
  • Locker Rooms & Showers
  • Free Parking

Member Reviews

Real results from real members

Shelley Holm

Shelley Holm

a month ago

I love the atmosphere at this gym. Every time I walk in the door someone yells hello and calls me by name. I've been going for 1 1/2 years and still love it. About one year ago I was lucky enough to get Juan as my personal trainer. While I enjoy chatting while working out, he keeps me on task without yelling or scolding me. He's fun to chat with. We can both do 2 things at once!!! I am 70 years old and used to be a gym rat. Now age has taken a toll on my joints and more. He's patient as I work through all the aches and pains from arthritis and injuries from years past. Every session he starts with how are you feeling today? I have days when I get dizzy and just don't feel all that good. He's always watching to make sure I feel right. We started at 2 times per week. We are now doing 3 to 4 sessions per week. He pushes me when I need it and he understands when I just don't feel like I can do what I should for the day. Those days it's about quantity over upping weights or pushing too hard. He is fun, funny and is excellent/easy to work with. He's got a good attitude when I need to change my days there. I would encourage you to reach out and see if he could help you too. He's taken me from barely getting up off the floor or couch, to skipping down the stairs and so much more. I haven't been this mobile in years. I can move in ways I didn't think I would ever be able to again!!! This is a huge accomplishment for this grandma!!!

Sean Lo

Sean Lo

a month ago

Good gym with lots of reasonable and good equipments! I have been workout with Garrett for the past 2 and a half years, and he has been very helpful in managing the workout plan and adjusting my posture, my progress is visible and encouraging! Really appreciate his effort and recommend everyone who want to find a couch to reach out to him! For the gym, try not to go during peak hours after 5pm to 8pm, it will be very crowded and the bench and lift rack will be fully occupied.

Sunny Rivero

Sunny Rivero

a month ago

Just started coming here after moving to the neighborhood and have been really impressed so far! The place is super clean and has a really good vibe, shoutout to the fun lights. The machines are great; everything feels new, well-maintained, and there’s plenty of variety so you’re not stuck waiting around. My personal fav is the infrared sauna! Was so hard to find a place in Seattle that doesn’t charge an arm and a leg for a session. Such a nice touch and enjoy that it’s personal use. Chris gave me a tour when I first came in and was super helpful and welcoming. He answered all my questions without making it sales-y, which I appreciated! The rest of the staff has been really nice and welcoming too. Overall just a solid, well-run gym and I’m glad I joined. Definitely recommend!

Jose Teo

Jose Teo

5 months ago

Henry's was great. Went there with my buddy after running a marathon. We got a small lift session and nice long recovery session as well. Gyms larger than expected. The hydro massage was amazing. Along with the frost locker and red light sauna were perfect to use after our run. Jess was extremely helpful and kind! Give her a raise immediately

Vincent Hernandez

Vincent Hernandez

a month ago

I’ve been training at Henry’s Gym for about a year now, and it’s been an incredibly positive experience. The gym itself is always clean, welcoming, and full of friendly staff who make it easy to feel comfortable. The biggest reason I keep coming back, though, is my trainer, Thao. I’ve been working with her for the past year, and the difference it’s made in my strength, confidence, and overall health has been huge. Thao is knowledgeable, supportive, and very attentive to form and technique. She knows how to push me to improve while still making every session feel encouraging and achievable. A year ago I wasn’t nearly as comfortable in the gym as I am now, and that’s largely thanks to Thao’s coaching and the environment at Henry’s. I genuinely feel stronger, healthier, and more confident than I have in a long time.

Bailey Ellingsen

Bailey Ellingsen

a month ago

I recently joined Henry’s Gymnasium and I honestly couldn’t be happier with my decision. Not only is the environment welcoming and motivating, but the equipment is high quality and well-maintained. What really sets Henry’s apart for me, though, is the staff. From day one, they’ve gone above and beyond to make me feel comfortable and part of the community. I especially want to shout out Chris. He gave me a thorough tour, answered all of my questions, and made me feel genuinely welcomed. It’s clear the staff truly care about the members and the culture of the gym. If you’re looking for a place with great energy, great equipment, and a supportive staff, this is it.

William D.

William D.

a month ago

Amazing!!! Amazing!!! I stopped by Henry’s while preparing for my move to Seattle this summer, and I was seriously impressed. I’ve been around gyms for a while, and Henry’s delivered. The vibe was welcoming and authentic, with members actually connecting with each other. The staff and management were friendly, greeting people by name and genuinely engaging with members. The tour was thorough, the equipment (Gym 80 and Panatta) looked top-tier and spotless, and the sauna, cold room, and massage chairs were a huge bonus. There appears to be a solid community of people here and I can only see this growing! Overall, it feels like a well-run gym with great energy. I can’t wait to be back this summer!!

Kari Crabtree

Kari Crabtree

a month ago

Henry’s is an excellent gym. I’ve been going since August 2025, and I’ve only had positive experiences. The facility is always clean, and the staff is consistently friendly and welcoming. In the past, I’ve felt very intimidated by gyms, but the team at Henry’s has completely changed that for me. The biggest impact, though, has been working with Thao. I’ve been training with her twice a week, and she is incredibly supportive, and knowledgeable in all things health and fitness. She listens to my goals, helps me improve my form, and constantly pushes, encourages and empowers me. Because of her, I feel confident and excited to go to the gym. I’m so grateful for this experience and highly recommend Henry’s Gym.

Sean Velazquez

Sean Velazquez

4 months ago

I’ve been going to Henry’s Gym for the past nine months, and it has genuinely been one of the best decisions I’ve made for my health. The space is always clean, and you can really see the care that went into the interior design. It feels welcoming the moment you walk in. The staff is friendly, attentive, and creates an inclusive environment where everyone feels comfortable to show up exactly as they are. The variety of equipment is great, so I’m never stuck doing the same routine. During these nine months, I’ve lost over 40 pounds, and having a place that feels this good to be in has made staying consistent so much easier. I’m now planning to work with one of their personal trainers to help me lose the next 20 pounds and fine-tune my form. If you’re looking for a gym that feels clean, thoughtful, and genuinely supportive, Henry’s Gym is a fantastic choice. I’m grateful I found it. 🤎💪🌈

Veronica Ramirez

Veronica Ramirez

a month ago

I love Henry’s gym! Found this gym while walking to the grocery store and it’s honestly one of the best gyms in Seattle. The gym is such a vibes and has a unique look. I’ve been to quite a few gyms here in Seattle & this gym has some really unique equipment that most gyms don’t offer. And The staff are incredibly sweet & welcoming! Definitely check it out!!

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Frequently Asked Questions

Common questions about Henry's Gymnasium

Business Features

Highlights & Amenities

Accessibility

  • Wheelchair-accessible car park
  • Wheelchair-accessible entrance
  • Wheelchair-accessible toilet

Service options

  • On-site services

Offerings

  • Sauna

Amenities

  • Gender-neutral toilets
  • Restroom

Atmosphere

  • Shower

Crowd

  • LGBTQ+ friendly
  • Transgender safe space

Planning

  • Appointment required
  • Membership required

Payments

  • Credit cards
  • Debit cards

Parking

  • Free parking lot
  • Paid parking lot

Find Us

Drop by for a tour or reach out to learn more about membership options.

Location

14 Mercer St, Seattle, WA 98109, United States

Hours

Open Now · Saturday 8 AM-6 PM
Tuesday 6 AM-10 PM
Wednesday 6 AM-10 PM
Thursday 6 AM-10 PM
Friday 6 AM-10 PM
Saturday 8 AM-6 PM
Sunday 8 AM-6 PM
Monday 6 AM-10 PM
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