Plainfield High School

Plainfield High School may refer to:

• Plainfield High School (Connecticut)
• Plainfield Academy — Plainfield, Illinois
• Plainfield High School (Illinois)
• Plainfield South High School — Plainfield, Illinois
• Plainfield High School (Indiana)
• Nashua-Plainfield High School — Nashua, Iowa
• Plainfield High School (New Jersey) — Plainfield, New Jersey
• North Plainfield High School — North Plainfield, New Jersey
• South Plainfield High School — South Plainfield, New Jersey