Contact Us National Karate - Academy of Martial Arts


Central Park Square
1422 Mainstreet
Hopkins, MN 55343
United States
School Owner: Mr. Jeff Sidner, 6th Degree Black Belt
Head Instructor: Mr. Jeff Sidner.
Instructors: Mr. Steve Mitchell, 3rd Degree Black Belt
Mr. Justin Wilson, 2nd Degree Black Belt
Ms. Sarah Myers, 1st Degree Black Belt
Office Manager: Ms. Tammy Goodwater.
About Hopkins National Karate

Since 1973, the National Karate Academy has been dedicated to helping men, women and children discover the benefits of martial arts training.

Physical strength, flexibility and weight control are developed through high repetition natural body exercises.

Mental confidence is achieved from time-tested & effective self-defense skill.

NK training teaches respect, self-discipline and perseverance.

NK’s black belt professional instructors are highly trained and dedicated to help all students achieve their life goals.

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About Mr. Jeff Sidner

Jeff Sidner began his martial arts training in 1989. After trying several schools, he found the Maplewood National Karate School in 1992 and immediately knew he’d found his martial arts home. He was promoted to 1st Degree Black Belt in 1995 and currently holds the rank of 6th Degree Black Belt.


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This is at the core of National Karate’s foundation! Stop by and check us out. ... See MoreSee Less

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4 days ago

Hopkins National Karate

Getting pumped for Diamond Nationals! Celebrating some previous victories... can’t wait for this year! Still time to sign up... message us or stop in the office. ... See MoreSee Less

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National Karate Official Page
Achieve the confidence, strength and self-discipline you deserve at National Karate!
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6 days ago

Hopkins National Karate


Everyone, bring in your past Diamond Nationals trophies to display in the class! Let's get excited and celebrate previous victories on our march towards this year's tournament! (Please make sure your name is on the trophy so it gets to go back home with you!)

Mr. Barry Maxwell.
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*2 week trial is a one-time offer for new students only. Uniform purchase required.