The Pittwater House School, commonly called Pittwater House, is an independent secular co-educational Pre-Kindy, primary and secondary day school, located in Collaroy, on the Northern Beaches of Sydney, New South Wales, Australia.

Being founded in late 1961 and opening in the Thomas Vickers Church Hall in Curl Curl in February of 1962, the school's enrolment numbers grew rapidly, with land being purchased in Collaroy by 1964 to house a new Prep School building.

The Country Life Scheme was created in 1970, entailing annual visits by class groups to the historic Abercrombie House in Bathurst.

The Junior Girls College opened in 1977, at which point sectional headmasters were appointed as administrators of the four schools that made up Pittwater House.

Construction of the School's Short Course Olympic Swimming Pool began in 1994, and in 2005 the School opened a purpose built, DOCs compliant, Early Childhood Centre to assist with the demand for pre-school places on the Northern Beaches.