NEW COURSE! Movement-based training for dads to engage fully in play with their children

Boulder Martial Arts Summer Camps

100% Outdoors for children ages 6-12

Registration goes up March 15th

NEW CLASS! Yoga for Every Body: Scaravelli-Lineage Yoga. Thursdays, 12:15–1:15 pm

Start Iaido

Dance for the pure joy of it! Join our NIA Dance Fitness classes, now 3 days a week (Mon-Wed-Fri)

Boulder Ki Aikido Children's Program - Martial Arts for Kids

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Aikido Martial Arts for Children

Ki Aikido for Kids, ‘Tweens & Teens in Boulder, CO

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Sign up for Traditional Japanese Jiu Jitsu for Teens | Classes meet on Saturdays @ noon!

Welcome to One Dojo
A Boulder Martial Arts Fitness Center focused on Mind-Body Arts

One Dojo is a welcoming, Zen-inspired Boulder martial arts fitness center focused on personal growth, peace and non-competitive training.

We offer a variety of traditional Eastern mind-body practices, emphasizing the development of inner calmness, physical wellbeing, spiritual discipline, and a deep sense of harmony with nature.

Children and adults of all ages learn from passionate, experienced instructors in a safe, supportive environment. Through dedicated practice, students cultivate self-confidence, inner strength, and true mastery—not by competing against others, but by refining their own spirit and becoming the best version of themselves.

Winner of Best of Boulder

Best Martial Arts Studio (2023 – 2025)

Best Yoga Studio (2022)

Best of Boulder 2025 - Silver - One Dojo

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Our Disciplines

OK, I’m Ready to Start!

One Membership.
Many Disciplines.

More than 40 classes to choose from, seven days a week!

Our monthly or punch-card memberships are designed to give students full access to all regular,
age-appropriate classes offered each week.

Start with our 8-day trial pass to begin experiencing the positive energy our teachers, classes and supportive One Dojo community environment provides!

Start Classes Now

Our Latest Articles

Father Strength in Play Boulder: Workshop & Six-Week Course

Turn Everyday Moments into Confident, Joyful Opportunities to Connect with Your Children If you’ve ever felt a quiet hesitation when your son or daughter runs up yelling “Daddy, play with me!” — if you want to lift, wrestle, chase, and tumble with real confidence instead of holding back — you’re not alone. We've crafted this program especially for you. TABLE OF CONTENTS “I’m not Very Good at Playing with my Kid” What is Father Strength in Play Boulder Strength, Skill & Relati

Scaravelli-Lineage Yoga Workshop: Yoga for Every Body

Yoga for Every Body: Intro to Scaravelli-Lineage Yoga Workshop

The practice of Scaravelli-lineage yoga is not about performing poses nor about needing flexibility. With attention to the bones, joints, gravity, and the natural intelligence of the spine, you’re invited to feel lightness, spaciousness, and ease.

The Evolution of Aikido Styles: Reflections of O-Sensei’s Lifelong Journey

In this article, we dive into the root of the stylistic differences in Aikido, recounting the natural evolution of Aikido through several decades as its founder developed the art of peace.

Japanese Jiujitsu & Sword Workshops in Boulder

This Japanese Jiujitsu & Sword workshop delves into the heart of a complete system that integrates the practical applications of empty-hand combat with the fluid precision of samurai swordsmanship.

Falling Classes for Active Adults: Learn to Fall Safely!

Falling Classes Now Weekly. Learn to Fall Safely at One Dojo!

Mastering the art of falling without injury—often taught in martial arts like Aikido or through specific falling classes—can significantly enhance physical safety, confidence, and overall well-being.

Vote One Dojo Best of Boulder Best Martial Arts Studio 2025 and enter to win!

Vote One Dojo Best of Boulder 2025 and enter to win!

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