Frensham School is an independent non-denominational comprehensive single-sex preschool, primary, and secondary day and boarding school for girls, located at Mittagong, in the Southern Highlands region of New South Wales, Australia. Frensham is affiliated with the Boarding Schools' Association of the United Kingdom, the Association of Heads of Independent Schools of Australia (AHISA), the Australian Boarding Schools' Association (ABSA), the Alliance of Girls' Schools Australasia (AGSA), and is a founding member of the Association of Heads of Independent Girls' Schools (AHIGS).