St Catherine's School is an independent and non-denominational Christian day and boarding school for girls, located in Toorak, an inner south-eastern suburb of Melbourne, Victoria, Australia. Established in 1896 as Castlemaine Ladies' College, the school has a non-selective enrolment policy. As for 2006 the school catered for approximately 730 students from pre-school to Year 12, including 80 boarders, on a 2.9 hectare campus. Boarding students come to St Catherine's from country Victoria, interstate and overseas.