Archbishop Timothy Costelloe is an Australian Roman Catholic bishop, currently serving as the Archbishop of Perth. He was born on 27 November 1947 in Melbourne, Australia. He was ordained as a priest in 1973 and later became a bishop in 2007. In addition to his role in Perth, Archbishop Costelloe has been involved in various church activities and initiatives, focusing on community engagement and social justice. He is known for his commitment to fostering dialogue within the church and addressing contemporary issues facing society.