Decatur High School

Decatur High School could refer to:

• Decatur High School (Alabama) — Decatur, Alabama
• Decatur High School (Arkansas) — Decatur, Arkansas
• Decatur High School (Georgia) — Decatur, Georgia
• Stephen Decatur High School (Decatur, Illinois), (1911–2000)
• Decatur High School (Michigan) — Decatur, Michigan
• Decatur High School (Texas) — Decatur, Texas
• Decatur High School (Federal Way, Washington) — Federal Way, Washington
• Decatur Central High School — Indianapolis, Indiana
• Stephen Decatur High School (Maryland) — Berlin, Maryland