Since 1999 Thoemmes Press (now Thoemmes Continuum) has been engaged in a large-scale programme of biographical dictionaries of philosophy and related subjects. This volume on Irish philosophers follows the standard format of arranging entires alphabetically by thinker.It includes two forms of entry: (1) entries reproduced from previous editions of Thoemmes encyclopedias of British philosophy and (2) wholly new entries on early (renaissance-period) and modern (20th century) philosophers, together with some new entries on the intervening centuries.