United High School may refer to:
- Beaumont United High School in Beaumont, Texas
- United High School (Laredo, Texas) in Laredo, Texas
- United High School (Ohio) in Hanoverton, Ohio — sometimes referred to as "United Local High School"
- United Junior/Senior High School (Pennsylvania) in Armagh, Pennsylvania
- United Senior High School (Illinois) in Monmouth, Illinois — sometimes still labeled as "United Junior/Senior High School"
- United Township High School in East Moline, Illinois
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