Tony O'Farrell

In 2012, he formally retired from Maynooth, though he remains very active in many arenas.

In 2002, O'Farrell established Logic Press which publishes mathematics books at various levels in both English and Irish. These range from the Irish Mathematical Olympiad Manual to undergraduate and postgraduate level texts and research monographs.

From 1992-1995, he also served as head of the Computer Science Department at Maynooth.

O'Farrell has long been active in the Irish Mathematical Society, serving as president in 1983 and 1984, and as editor of the Bulletin of the IMS since 2011.

He attended University College Dublin (UCD) earning a BSc in mathematical science (1967). After a year working for the Irish Meteorological Service, he returned to UCD for his MSc (1969). He then moved to the USA, to Brown University from which he earned a PhD in 1973, for a thesis on "Capacities in Uniform Approximation" done under Brian Cole. After two years at the University of California, Los Angeles (UCLA), during which he published extensively, in 1975 he returned to Ireland as Professor of Mathematics at St. Patrick's College, Maynooth (later Maynooth University), outside Dublin. This appointment was notable for two reasons: he was only 28, and, while Maynooth had lay lecturers and senior lecturers, he was the first layman appointed to a chair at this traditionally pontifical institution.

Tony O'Farrell (born Anthony G. O'Farrell in 1947 in Dublin) is an Irish mathematician who is Professor Emeritus at Maynooth University. He has been in the Mathematics and Statistics Department there since 1975.

In 1990 O’Farrell established the annual Hamilton Walk, which commemorates the 16 October 1843 discovery of quaternions by William Rowan Hamilton. It starts at Dunsink Observatory in County Dublin, just west of the city, and follows the Royal Canal east to Broom Bridge. Over the decades, this has grown in popularity and stature, attracting Nobel laureates and Fields Medallists. O'Farrell's younger colleague Fiacre Ó Cairbre took over the organisation of the walk at the end of the 1990s, but O'Farrell always gives a speech at Broom Bridge. In 2018, O’Farrell and Ó Cairbre received the 2018 Maths Week Ireland Award, for "outstanding work in raising public awareness of mathematics" resulting from the founding and nurturing the Hamilton Walk.