Trinity College (Irish: Coláiste na Tríonóide), 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 located in Dublin, Ireland. The college was founded in 1592 by Queen Elizabeth I.
Academically, it is divided into three faculties comprising 25 schools, offering degree and diploma courses at both undergraduate and postgraduate levels.
The Library of Trinity College is a legal deposit library for Ireland and Great Britain, containing over 6.2 million printed volumes and significant quantities of manuscripts, including the Book of Kells.