St Gregory's College is a Catholic, secondary, day and boarding school for boys, located in Campbelltown, a south-western suburb of Sydney, New South Wales, Australia. Founded on 3 February 1926 and conducted by the Marist Brothers since 1929, St Gregory's has a non- selective enrolment policy accounitng for the large number of students and currently caters for approximately 1100 students from Years 7 to 12, including 180 boarders. The college is a school of the Diocese of Wollongong, and is a member of the Association of Heads of Independent Schools of Australia (AHISA), the Australian Boarding Schools' Association, the Association of Marist Schools of Australia. and is an associate member of the Independent Schools Association (ISA). The School has hosted the Marist Cricket and Basketball Carnival's, Won the Arrive Alive and Nutri-Grain Cup. Most recently in 2008 St Gregory's had a mass in celebration of the "Journey of the World Youth Day Cross and Icon" just months before World Youth Day in which the college was very involved. St Gregory's College commenced operations in 1926. The property on which the College is located was owned by Thomas Donovan.