| William Penn SD, PA (District) |
| William S. Hart Union High, CA (District) |
| William W & Josephine Dorn Charter Community School, NM (PSA) |
| Williams Bay School District, WI (District) |
| Williams County, ND (ISD) |
| Williams Unified, CA (District) |
| Williams Unified District, AZ (District) |
| Williams Valley SD, PA (District) |
| Williamsburg, MA (District) |
| Williamsburg 01, SC (District) |
| Williamsburg Charter High School, NY (PSA) |
| Williamsburg Collegiate Charter School, NY (PSA) |
| Williamsburg Comm School District, IA (District) |
| Williamsburg Community SD, PA (District) |
| Williamsburg County, SC (ISD) |
