CrossFit Union Square


Welcome to CrossFit Union Square!

Located on the corner of Union Square, we’re just steps away from the city’s hub!

Try A Class Free!



Front Squat
Heavy Single
4×10 Tempo 2220


Dumbell Thruster


We’re so sure you’ll fall in love with CrossFit that we’re let you try a FREE Class






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Liability Waiver

I, the undersigned, hereby voluntarily desire to participate in calisthenics and conditioning training and exercise at Intensive Muscle Training Facility (Reebok & CROSSFIT UNION SQUARE) solely for my own enjoyment, exercise and social purposes. In consideration of the foregoing, I hereby release Reebok & CROSSFIT UNION SQUARE, and its officers, agents and employees, and the instructor(s), from any and all claims, suits, judgments, costs and expenses of whatever nature whatsoever, known or unknown, which may arise out of my participation in these classes, specifically including but not limited to claims for injuries and subsequent intervening medical care. I attest and verify that I am physically fit and am at no known risk to participate in these cardiovascular and muscle toning activities.  I further understand and agree that acceptance of this Release form does not in any manner imply acknowledgment or verification by Reebok & CROSSFIT UNION SQUARE of my physical condition and/or ability to participate.  If I am in doubt as to whether my physical condition permits me to participate in these classes, I agree to obtain the approval of my personal physician. I agree to immediately stop my participation in the classes and to notify any Reebok & CROSSFIT UNION SQUARE staff member in the event I feel ill or injure myself. I further understand and agree that notwithstanding the foregoing, Reebok & CROSSFIT UNION SQUARE reserves the right to ask that I cease participating in these classes for any reason, and if that should happen, I agree to do so.

Featured blog

Posted on 09/09/2015

"The question isn't what I've gained from CrossFit Union Square, it's what I've lost! I've lost 30lbs since November, and I fit into the suit I got married in. Now I keep up with my kids, and when


Featured blog

Posted on 08/03/2015

"Do you need help moving the equipment? Because I've got muscles!"   #WeAreRhinos #keepcharging   -Jennifer Herrera (@jennifermherrera), 29, member CrossFit Union Square​ photo


Featured video

Posted on 05/19/2015

NBC Deportes stops by CrossFit Union Square to see what our gym is all about!

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Featured video

Posted on 03/27/2015

Coach Eric takes us through Open workout 15.4 — and the aftermath of some great performances!

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  • Meet the coach

    Annie Thorisdottir

    Annie, a world-renowned competitor who o

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  • Our Sister Boxes

    Experience CrossFit at its highest level. Ran by RhinoCo, this organization...

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  • Our Facilities

    CrossFit Union Square is a world-class CrossFit box located ideally on Southwest corner of Union Square.

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  • Supplements

    Nutriforce Sports offer the most complete line of supplements for CrossFitters.

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  • CrossFit_US_Events

    Upcoming event

    Join us for a FREE intro class this Saturday, at 10 am!

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    Featured blog

    I became hooked on CrossFit in 2010 for many reasons...

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    Plans And Pricing

    Welcome to CrossFit Union Square!

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  • plaeo-feature-small

    What Is Paleo

    It helps to keep the body in a more balanced state...

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  • Nutrition

    Nutrition Philosophy

    There are a few lifestyles of eating CrossFit promotes: Paleo

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    FREE Class

    CrossFit Union Square is New York City’s premiere CrossFit facility

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  • CrossFit_US_ExpressWod

    Our Programs

    This is the meat and potatoes of what we do at RCF Union Square.

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  • CrossFit_US_Pride

    Our Culture

    We’re all about looking good and feeling good, getting fitter...

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