All Saints Greek Orthodox Grammar School, or simply All Saints Grammar (ASG), is a dual-campus independent Greek Orthodox co-educational early learning, primary, and secondary day school, located in south-western Sydney, New South Wales, Australia. Established in 1990, the school's Junior campus for early learning to Year 6 is located in Belmore, and the Senior High School "Towers Campus" for students in Year 7 to Year 12 is located in Belmore South. The school has a non-selective enrolment policy, and, as of 2008, catered for approximately 700 students from early learning to Year 12.