http://www.citizensinformation.ie/e...cation_procedures_and_entry_requirements.html
National University of Ireland: The minimum entry requirement for the universities that are part of the National University of Ireland (NUI) is 6 subjects, including English, Irish and a third language. In 2 of these subjects, students must have achieved grade C at Higher Level.
University of Limerick: The minimum entry requirement is 6 subjects, including English, Irish and a third language. In 2 of these subjects, students must have achieved grade C at Higher Level.
Trinity College Dublin: students need a minimum of 6 subjects, with grade C on 3 Higher-Level papers and a pass in English, maths and another language.
Dublin City University: all students applying for courses in Dublin City University must have 6 Leaving Certificate subjects, with a grade C on 2 Higher-Level papers and a pass in maths and either English or Irish.
Institutes of technology
Level 8 (Honours Degree) courses: students generally require a minimum of grade C in 2 subjects at Higher Level and grade D in 4 other subjects, including maths and Irish/English.
Levels 6 and 7 (Higher Certificate and Ordinary Degree): students require 5 grade Ds, including maths and Irish/English.
Colleges of education
Colleges of education require a minimum of 3 grade Cs on Higher-Level papers, including Irish, and three grade Ds, including maths and English.