Albany High School (AHS) is a comprehensive public high school in Albany, California in the San Francisco Bay Area. Enrollment is approximately 1,300 students from grades 9 through 12.

In 2001, Albany was accredited by the Western Association of Schools and Colleges for the maximum term of six years. Albany High School was #756 nationally ranked in 2016, and #119 among California high schools. In 2013 Albany High School received an award for Distinction in Civic Learning from the California Courts. Associate Justice Carole Corrigan of the California Supreme Court presented the Award which honored the work of the social studies department and student clubs such as the Model United Nations program.

In the 2010–2011 academic year, Albany became home to a forensic (Speech and Debate) team. The Albany High School Speech and Debate team is a member of the Golden Gate Speech Association and the National Forensic League.

The Albany High School Jazz Band, under the direction of Craig Bryant, was selected as a finalist for the 2010 Next Generation Festival, presented by the Monterey Jazz Festival, and the 2010 Essentially Ellington Festival, presented by Jazz at Lincoln Center in New York, New York.

Albany High School has many competing STEM teams, including Science Bowl, National Ocean Science Bowl, and Science Olympiad.

Since it was founded at Albany Middle School (Division B) in 2013, Albany's Science Olympiad has qualified for state 4 times. In 2017 and 2018, the Albany High School Science Olympiad (Division C) team won first place in the Bay Area Regional Science Olympiad, and placed 5th and 3rd overall respectively at State.

The Science Bowl team won the 1993 Department of Energy National Science Bowl competition. Albany High won its 2008 Science Bowl regional competition, defeating academic rival Mission San Jose High School. In 2009, Albany won its regional National Science Bowl competition, placing fifth nationwide.

In 2016, Albany went to North Carolina for Nationals, where it won first place in the 2016 Department of Commerce National Ocean Sciences Bowl competition. In 2019, Albany took home a second national championship in Washington, D.C., going undefeated in both the buzzer portion and the Scientific Expert Briefing portion of the competition.

The school mascot is the cougar and the school colors are red and white.

In February 2014, the girls' wrestling team took first place at the CIF State tournament. In November 2021 Sophia Nordenholz won the individual Division IV State Cross-Country Championship with the 7th fastest time in state meet history. At the same meet the boys' team won the Division IV State Championship, with Sean Morello taking 3rd place and Lucas Cohen taking 13th. In May 2023 Sean Morello took 7th in the 3200 meter race in the State Track and Field Championships and Lucas Cohen took 9th in the 1600 meters.

In 1997, Albany High School's main building and gymnasium, both completed in 1934, were deemed to be seismically unsound. They were demolished, and construction began on a new campus. During the four years of construction, between 1997 and 2001, classes were held in portable trailers. The new school building and gymnasium opened in 2001. In 2020, a new addition was opened on the campus, including 8 large classrooms and a future design-build space.

As of 2023, the principal is Darren McNally.

In fall of 2016 an Albany High student started an Instagram account on which he posted unauthorized photos of Black classmates along with the word nigger and images evoking lynchings. By March 2017, the account became public knowledge at the school, causing disruption. The student who posted the content was expelled from the school; additionally, all students who had followed the account were suspended for five days, the maximum allowed under California law, including three students who had never liked any of the content or indicated any approval of it. In the weeks following the suspension of students, there was a community rally and a student sit-in protesting racism at the school. One of these protests was held in April, at the same time and place as a voluntary mediation session between the suspended students and the affected Black classmates. The mediation was scheduled by the district at the end of the suspensions, because the suspended students would have to return to school. What began as a quiet protest by uninvolved students ended in a melee as police attempted to escort the students and their parents off campus after the mediation session, during which student protesters threw things at and hit the students.

The next month, ten Albany High students filed suit against the school arguing that they had been punished unfairly for their involvement with the Instagram account. The students and their lawyers claimed that the school had violated their First Amendment rights by punishing them for actions that took place outside of school grounds and outside of school hours. The lower court ruled in favor of five of the ten students in November 2017. Eight of the ten ultimately settled their claims with the school, provoking distress in the victims' families. Two appealed their claims to the Ninth Circuit Court of Appeals. In December 2022, the Ninth Circuit Court ruled unanimously in favor of the school district, saying that the Instagram account amounted to "severe bullying" and "contributed nothing to the 'market of ideas'." The last lawsuit against the district was resolved in 2023, in the district's favor. Additionally, one of the students who was victimized in the account filed a lawsuit against the account creator and two other students who had been significantly involved, which eventually settled for a cash payment in late 2020.

The entire city of Albany is zoned to this school. The University Village development, a student housing complex of the University of California Berkeley which houses families, is assigned to this school.

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• Albany Unified School District
• Mahanoy Area School District v. B.L. – Supreme Court case affirming that schools can discipline students for social media posts made off campus, if the contents disrupt the school

• Albany High School official website
• The Instagram Account That Shattered a California High School - detailed New York Times account of Instagram controversy