Brisbane Grammar School (BGS) is an independent, Non-denominational, day and boarding school for boys, located in Spring Hill, an inner suburb of Brisbane, Queensland, Australia. It is the oldest secondary boys school in Brisbane. Established in 1868 under the Grammar Schools Act which was passed by the Queensland Government in 1860, the school has a non-selective enrolment policy and currently caters for approximately 1500 students from Years 5 to 12, including around 100 boarders.