Lynn Classical High School is a high school in the city of Lynn, Massachusetts, United States. It is a part of Lynn Public Schools.
The school was once located off of the Lynn Commons, in a building which is now the Fecteau-Leary school. The high school was moved to O'Callaghan Way after the controversial construction of a new facility. The new facility, built on landfill, required significant repair after the building's foundation began to sink due a lack of steel pilings.
Classical has maintained a fairly strong record in terms of graduation rates and test scores. The school has been lauded in the past by publications such as U.S. News & World Report.
The school also has a strong athletic tradition, and is the school from which Harry Agganis graduated before becoming a world class athlete. In the school's main foyer, a mural of Agganis greets visitors.