North Sydney Boys High School (abbreviated as NSBHS) is a government-funded, single-sex, academically selective secondary day school for boys, located at Crows Nest, on the Lower North Shore of Sydney, New South Wales, Australia. In 2023, North Sydney Boys High School sat as the first ranking high school in the state of NSW, based on the percentage of exams sat that achieved a Distinguished Achievers (DA), overtaking the first ranked James Ruse Agricultural High School (abbreviated as JRAHS, or simply JR), sending JRAHS to the second rank for the first time since 1996 (or in 27 years), and establishing itself as a contender to the previously established reign of James Ruse Agricultural High School.