The Michigan High School Athletic Association (MHSAA) is a service organization for high school sports in Michigan and is headquartered in East Lansing. It is a member of the National Federation of State High School Associations (NFHS).
Unlike many other NFHS member organizations,
- The MHSAA does not charge membership fees for schools; it derives its income from ticket sales at tournament level games and a handful of corporate sponsorships.
- It is independent of and not officially recognized by any governmental body, local or statewide.
- Membership is voluntary; no Michigan high school is compelled by law to be an MHSAA member.
As of August 13, 2019, the MHSAA has 749 member high schools, comprising virtually all high school athletics in Michigan, public and private. Only a small number of private schools and a few nontraditional public schools in Michigan forgo MHSAA membership. MHSAA member schools may compete against non-member school in interscholastic athletic competition.
The MHSAA supports 28 sports.