San Bernardino High School (SBHS) is an American public high school and city located at 1850 North E Street within San Bernardino, California and a member of the San Bernardino City Unified School District. SBHS was granted charter as a city in 1963, under the name Cardinal City after the school's mascot, the Cardinal. SBHS is the oldest high school in the City of San Bernardino.

San Bernardino High School was officially established when residents of the San Bernardino, California approved a $60,000 bond for construction of a high school in 1891. Construction of a three-story building at the southwest corner of Eighth and E Streets was completed in 1892 and received state accreditation in 1893 as San Bernardino Polytechnic High School. In 1915, after enrollment had exceeded 400 students, a new campus was built consisting of five main buildings.

In 1963, California Governor Edmund G. Brown granted the SBHS a city charter under the name Cardinal City.

San Bernardino High School has a wide range of academic classes with regular 'College Prep', 'Honors' and Advanced Placement classes.The school offers the AVID program as well. SBHS has exemplary Mock Trail, Academic Decathlon. numerous SBHS students are members of National Honors Society, Spanish Honors Society, Quill and Scroll Journalism Honors Society, International Thespian Honors Society and the National Art Honors Society.