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
This disambiguation page lists articles about schools, colleges, or other educational institutions which are associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.