Trinity College, officially The College of the Holy and Undivided Trinity of Queen Elizabeth near Dublin, is the sole constituent college of the University of Dublin, a research university in Dublin, Ireland.

Trinity is Ireland's oldest university with a reputation as a research-intensive centre. Academically, it is divided into three faculties comprising 23 schools, offering degree and diploma courses at both undergraduate and postgraduate levels. The admission procedure is based exclusively on academic merit, with the college being known for programmes in law, literature and humanities.