Bands
| Title | City | Information | Category |
|---|---|---|---|
| Mauldin Middle School | Middle School | ||
| May River High School | Bluffton, SC | High School | |
| Mayewood Middle School | Middle School | ||
| Mayo High School | High School | ||
| McBee High School | High School | ||
| McCants Middle School | Middle School | ||
| McClellanville Middle School | Middle School | ||
| McCormick High School | High School | ||
| McCracken Middle School | Middle School | ||
| McDuffie High School | High School |