St Joseph's College is an independent Roman Catholic single-sex secondary day and boarding school for boys, conducted in the Marist Brothers tradition, located in Hunters Hill, a suburb on the Lower North Shore of Sydney, New South Wales, Australia.

The Marist Brothers of the Schools, commonly known as simply the Marist Brothers, is an international community of Catholic religious institute of brothers. In 1817, Marcellin Champagnat, a Marist priest from France, founded the Marist Brothers with the goal of educating young people, especially those most neglected. While most of the brothers minister in school settings, others work with young people in parishes, religious retreats and spiritual accompaniment, at-risk youth settings, young adult ministry and overseas missions.