Castle High School may refer to:
- United Kingdom
- Castle High School (Belfast) in Belfast, Northern Ireland
- Castle High School (Dudley) in Dudley, England
- United States
- John H. Castle High School in Newburgh, Indiana
- James B. Castle High School in Kaneohe, Hawaii
See also
edit- Castle Hill High School in Castle Hill, New South Wales, Australia
- Castle Hill High School, Offerton in Stockport, England, United Kingdom
- Mearns Castle High School in Newton Mearns, East Renfrewshire, Scotland, United Kingdom
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