Sydney Girls High School (abbreviated as SGHS or Sydney Girls) is a government-funded single-sex academically selective secondary day school located at Moore Park, in Sydney, New South Wales, Australia. Established in 1883 and operated by the New South Wales Department of Education and Communities, as a school within the Port Jackson Education Area of the Sydney Region, the school has approximately 940 students from Years 7 to 12 and is situated adjacent to its "brother school", Sydney Boys High School.