St Mary MacKillop College, formerly known as MacKillop Catholic College, is a Catholic high school in the Australian capital of Canberra, with two campuses in the Tuggeranong Valley. The school is the result of an amalgamation of Padua High School and St. Peter's College in 1998. It is the largest school in Canberra. Mackillop College describes itself as a "dynamic and welcoming community where excellence in education is valued".