Balboa High School, colloquially known as Bal, is an American public high school located near the Excelsior District in the Mission Terrace neighborhood of San Francisco, California, United States. Balboa serves grades nine through twelve as part of the San Francisco Unified School District (SFUSD).

San Francisco Unified School District (SFUSD), established in 1851, is the only public school district within the City and County of San Francisco, and the first in the state of California. Under the management of the San Francisco Board of Education, the district serves approximately 49,500 students across 121 schools.