Alhambra High School (AHS) is a public high school in Alhambra, California established in 1898. It is a part of the Alhambra Unified School District.

The school is located on Second Street, across the street from City Hall and the Police Department, bounded by Second Street, Commonwealth Avenue, Fifth Street, and Main Street. The campus is divided into three parts, by Third and Fourth Streets.

Alhambra High School has been accredited by the Western Association of Schools and Colleges—for the first time in 1965 and most recently in 2024, for a fixed term after each evaluation.