Sierra High School may refer to:
- Sierra High School (Mammoth Lakes, California), Mammoth Lakes, California
- Sierra High School (Manteca, California), Manteca, California
- Sierra High School (San Bernardino, California), 570 East Ninth Street San Bernardino, California 92410
- Sierra High School (Tollhouse, California), Tollhouse, California
- Sierra High School (Whittier, California), Whittier, California
- Sierra High School (Colorado), Colorado Springs, Colorado
- La Sierra High School, Riverside, California
- Sierra Vista High School (Spring Valley, Nevada), Spring Valley, Nevada
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