| Athens City School District, OH (District) |
| Athens CUSD 213, IL (District) |
| Athens ISD, TX (District) |
| Athens School District, WI (District) |
| Athens-Meigs Educational Service Center, OH (ISD) |
| Atherton Community Schools, MI (District) |
| Athlos Academy of Saint Cloud, MN (PSA) |
| Athlos Academy of Utah, UT (PSA) |
| Athlos Traditional Academy, AZ (District) |
| Athol-Royalston, MA (District) |
| Atkins School District, AR (District) |
| Atkinson County, GA (ISD) |
| Atkinson County, GA (District) |
| Atlanta C-3, MO (District) |
| Atlanta Community Schools, MI (District) |
