Roger Irving Pryke (12 February 1921 – 28 June 2009) was a scholar, Catholic priest, psychologist, and social activist who left an indelible impression on the Australian Catholic community and on the broader Australian community. As a priest he was a knowledgeable precursor, and later exponent, of the reforms of the Second Vatican Council. As a preacher, lecturer and personal counsellor he was acknowledged as "(changing) thousands of people's lives" and influencing those thousands into "(becoming) a new kind of Catholic". As a personal guide to many, he applied the principles of psychology to the enrichment of the Christian life to great effect. His compelling social conscience led to his public involvement in issues such as apartheid in South Africa, the Vietnam War, and within the Church