North Sydney Girls' High School (abbreviated as NSGHS, more commonly known as NSG) is a government-funded single-sex academically selective secondary day school for girls, located in Crows Nest, in Sydney, New South Wales, Australia.

When the New South Wales Government decided to close Crows Nest Boys High School, the facility was transferred to North Sydney Girls.

In December 1993, North Sydney Girls High officially moved to its current location, following a $6 million building and renovations project.

[6] North Sydney Girls High School is registered and accredited with the New South Wales Board of Studies, and therefore follows the mandated curriculum for all years.

NSGHS also has a chess club, dance ensembles, and a cadet program at Marist Catholic College North Shore, and has had students participate in the Duke of Edinburgh Award Scheme.