MASD

MASD may refer to:


 * Pennsylvania
 * Mahanoy Area School District, Schuylkill County
 * McKeesport Area School District, McKeesport
 * Meyersdale Area School District, Somerset County
 * Mifflinburg Area School District, Union County
 * Millersburg Area School District, Dauphin County
 * Millville Area School District, Columbia County
 * Milton Area School District, Milton
 * Minersville Area School District, Schuylkill County
 * Mohawk Area School District, Bessemer, Lawrence County
 * Moon Area School District, located about 20 mi northwest of Pittsburgh
 * Montgomery Area School District, Lycoming County
 * Montoursville Area School District, Lycoming County
 * Montrose Area School District, Susquehanna County
 * Washington State
 * Mount Adams School District, Yakima County