John Leroux's World KarateFIT Centre proudly serving Ottawa since 1997
John Leroux’s World KarateFIT Centre has Classes in Ottawa, Perfect for Kids, Teens, and Adults Martial Arts Lessons.
Who we Are And why You Should Train Here
Since we’ve opened, we’ve been dedicated to changing the lives of people one person at a time, through martial arts, education and coaching. We strive to provide a safe, comfortable and welcoming atmosphere for all students and family members in . We take pride in creating an environment for individuals to achieve, develop and succeed in their personal goals.
We strongly believe that martial arts can be for everyone, regardless of age, gender or experience levels. Throughout all of our programs, students will not only learn the necessary skill sets to protect themselves, we stand behind our realistic and practical approach, confident it will enable every member to achieve greatness and live their best life..
Get To Know Our World Class Instructors
Nathalie Leroux
20yrs+ martial arts experience
John Leroux
Chief Instructor, 8th Dan
“Not a vessel to be filled but a match to be lite.” We choose to ignite the power of resourcefulness in every student, and while we teach competence in the art we have a responsibility to balance this strength with ethics and mental fortitude.
Mackenzie Stewart
Shodan with 8yrs+ experience
“Mackenzie is quite a competitor. She has skills, and she is a talented instructor.”
Renshi Ron Jande
20yrs+ martial arts experience
“Renshi has a passion for karate and the soul of a samurai.”
Joseph Moulton
4th Dan – 15yrs+ martial arts experience, Tournament Competitor and Coach
“If you keep going you’ll get there! Consistency is the key to success!”
John’s leadership extends beyond technique. He has developed programs that connect martial arts training with personal growth, leadership development, confidence building, and family values. He believes that the black belt journey is not simply about rank, but about character — learning to face challenge, exceed perceived limits, and strive for one’s personal best with humility and determination.
As a business owner and mentor, John has also worked to create a community-centered environment where students and families feel supported, challenged, and inspired. His influence has reached not only through classes and seminars, but through his commitment to building trust, instilling belief in others, and encouraging people to live with greater discipline, agency, and purpose.
Whether teaching a young beginner, guiding a leadership student, mentoring instructors, or encouraging families, John Leroux is committed to keeping the spirit of martial arts alive in a way that is practical, uplifting, and transformational.
His message is simple: “Train hard, live with purpose, believe in your potential, and keep moving forward…
Stay the path.”
