Gerald Glynn O'Collins (born 1931) is an Australian Jesuit priest and academic. He was a research professor and writer-in-residence at the Jesuit Theological College (JTC) in Parkville, Victoria, and a research professor in theology at St Mary's University College in Twickenham.
O'Collins has been an honorary visitor and a visiting scholar at Pembroke College, and he currently serves as an honorary adjunct professor at the Australian Catholic University. He has delivered the Fisher Lecture and the Margaret Beaufort Lecture at Cambridge and the Cardinal Hume Lectures at Heythrop College. Amongst other honours, he is the recipient of the Malipiero Prize, the Stefano Borgia European Prize, and the Johannes Quasten Medal given by Catholic University of America.