Plainfield High School

Plainfield High School may refer to:


 * Plainfield High School (Connecticut)
 * Plainfield High School (Illinois)
 * Plainfield South High School &mdash; Plainfield, Illinois
 * Plainfield High School (Indiana)
 * Nashua-Plainfield High School &mdash; Nashua, Iowa
 * Plainfield High School (New Jersey) &mdash; Plainfield, New Jersey
 * North Plainfield High School &mdash; North Plainfield, New Jersey
 * South Plainfield High School &mdash; South Plainfield, New Jersey