Henry M. Gunn High School is one of two public high schools in Palo Alto, California. Gunn High School is a four-year high school with a current enrollment of just over 1,900 students. The academic year has two semesters with 240 minutes of weekly instruction for every class. The school's schedule operates on a rotating bell schedule with classes assigned to lettered "periods" from A through G.
Established in 1964, Gunn High School was named after the late Henry M. Gunn (1898–1988), who served as the Palo Alto superintendent from 1950 to 1961. In 1964, the Palo Alto Unified School District announced it would name the district's third high school after him.
The ethnic and racial makeup of the 2010-2011 student population is: Caucasian - 49.5%, Asian - 34.9%, Hispanic - 7.4%, Asian Indian - 5.5%, African American - 2.1%, Multiple or no response - 20.2%. Males make up 51.0% and females make up 49.0%. Approximately 6% of the student body is economically disadvantaged and 4% are English Learners.