The Blackwattle Bay Campus of the Sydney Secondary College is a government-funded co-educational dual modality comprehensive senior secondary day school, located in the inner-western Sydney suburb of Glebe, New South Wales, New South Wales, Australia. Established in 1979 as Glebe High School, the campus caters for approximately 750 students in Year 11 and Year 12. Since 2005, the campus has served exclusively as the senior school of the Sydney Secondary College and its two junior campuses are Balmain and Leichhardt campuses.