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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Some pics from last night’s Krav Exam. Congratulations Dena Larson and Matt Larson on your promotion to Associate Instructor Level 1!!! ... See MoreSee Less

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Hopkins, please see the note below from Ms. Ashley Firouzi!!! 🤗

“So..... I am very exited to let everyone know that I will be teaching on Mondays at Hopkins National Karate starting August 26th. There is a class for everyone. Join me!! Kickboxing is at 8pm and I would love to have the class packed. Any Ramsey or Andover students you should come join me over there!!!
Current students: Thank you for letting me be part of your journey. Can't wait to meet you.”

With Ms. Wendy Breuer teaching on Tuesdays, Hopkins NK is extremely fortunate to be getting some of NK’s most experienced instructors. Good things are coming!!!
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Congratulations testers! ... See MoreSee Less

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REMINDER: No Regular Classes tomorrow, August 10th, due to staff training and the black belt exam. Best of luck to all candidates!!! ... See MoreSee Less

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The brown belts rocked their multiple tornado kicks Thursday evening and took on a new challenge: jump hook kicks! belts take on multiple tornado kicks and jump hook kicks. 8 Aug 19
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*2 week trial is a one-time offer for new students only. Uniform purchase required.