The Missouri State High School Activities Association (MSHSAA) is dedicated to promoting the value of participation in high school sports and activities across Missouri. Founded to enhance the educational experience, MSHSAA encourages sportsmanship, teamwork, and personal excellence among student-athletes, while fostering community involvement and supporting the democratic principles of the state and nation.

MSHSAA oversees a comprehensive range of competitions in various sports and activities, providing resources for member schools including eligibility standards, coaching education, and training programs. Services also extend to ordering official publications like rule books, calendars, and championship apparel, as well as engaging resources to ensure the well-being of student-athletes, such as courses on mental health and injury prevention.

With a commitment to nurturing young talent, MSHSAA plays an integral role in shaping the future leaders of Missouri through sports and activities, helping to create resilient individuals who contribute positively to society.