Gerald Glynn O'Collins SJ AC (2 July 1931 – 22 August 2024) was an Australian Jesuit priest and academic.

[3] In 2006, O'Collins was made a Companion of the General Division of the Order of Australia (AC), in recognition of his outstanding commitment to theological scholarship and ecumenical initiatives.

His maternal grandfather Paddy Glynn was a federal government minister, while his sister Maev O'Collins became a professor at the University of Papua New Guinea.

He was ordained a Roman Catholic priest in 1963 and went on to earn a Licentiate in Sacred Theology (STL) at Heythrop College, Oxfordshire, in 1967.

[8] O'Collins organised and co-chaired international ecumenical symposia on the Resurrection (1996), the Trinity (1998), the Incarnation (2000), the Redemption (2003), and the legacy of Pope John Paul II (2008), also co-editing their proceedings.